Vulnerability Details CVE-2023-4021
The Modern Events Calendar lite plugin for WordPress is vulnerable to Stored Cross-Site Scripting via Google API key and Calendar ID in versions up to, but not including, 7.1.0 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with administrator-level permissions and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. This only affects multi-site installations and installations where unfiltered_html has been disabled.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.002
EPSS Ranking 37.2%
CVSS Severity
CVSS v3 Score 4.4
Products affected by CVE-2023-4021
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cpe:2.3:a:webnus:modern_events_calendar_lite:3.1.0
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cpe:2.3:a:webnus:modern_events_calendar_lite:3.1.1
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cpe:2.3:a:webnus:modern_events_calendar_lite:3.1.2
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cpe:2.3:a:webnus:modern_events_calendar_lite:3.1.3
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cpe:2.3:a:webnus:modern_events_calendar_lite:3.1.4
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cpe:2.3:a:webnus:modern_events_calendar_lite:3.1.5
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cpe:2.3:a:webnus:modern_events_calendar_lite:3.1.6
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cpe:2.3:a:webnus:modern_events_calendar_lite:3.2.0
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cpe:2.3:a:webnus:modern_events_calendar_lite:3.3.0
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cpe:2.3:a:webnus:modern_events_calendar_lite:3.3.5
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cpe:2.3:a:webnus:modern_events_calendar_lite:3.4.0
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cpe:2.3:a:webnus:modern_events_calendar_lite:3.4.5
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cpe:2.3:a:webnus:modern_events_calendar_lite:3.5.0
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cpe:2.3:a:webnus:modern_events_calendar_lite:3.5.1
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cpe:2.3:a:webnus:modern_events_calendar_lite:3.5.2
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cpe:2.3:a:webnus:modern_events_calendar_lite:4.0.0
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cpe:2.3:a:webnus:modern_events_calendar_lite:4.1.0
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cpe:2.3:a:webnus:modern_events_calendar_lite:4.2.0
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cpe:2.3:a:webnus:modern_events_calendar_lite:4.2.1
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cpe:2.3:a:webnus:modern_events_calendar_lite:4.2.3
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cpe:2.3:a:webnus:modern_events_calendar_lite:4.2.4
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cpe:2.3:a:webnus:modern_events_calendar_lite:4.2.5
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cpe:2.3:a:webnus:modern_events_calendar_lite:4.3.0
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cpe:2.3:a:webnus:modern_events_calendar_lite:4.3.1
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cpe:2.3:a:webnus:modern_events_calendar_lite:4.3.2
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cpe:2.3:a:webnus:modern_events_calendar_lite:4.3.5
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cpe:2.3:a:webnus:modern_events_calendar_lite:4.3.6
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cpe:2.3:a:webnus:modern_events_calendar_lite:4.4.0
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cpe:2.3:a:webnus:modern_events_calendar_lite:4.4.5
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cpe:2.3:a:webnus:modern_events_calendar_lite:4.4.6
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cpe:2.3:a:webnus:modern_events_calendar_lite:4.4.7
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cpe:2.3:a:webnus:modern_events_calendar_lite:4.4.8
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cpe:2.3:a:webnus:modern_events_calendar_lite:4.4.9
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cpe:2.3:a:webnus:modern_events_calendar_lite:4.5.1
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cpe:2.3:a:webnus:modern_events_calendar_lite:4.6.0
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cpe:2.3:a:webnus:modern_events_calendar_lite:4.6.5
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cpe:2.3:a:webnus:modern_events_calendar_lite:4.7.0
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cpe:2.3:a:webnus:modern_events_calendar_lite:4.7.1
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cpe:2.3:a:webnus:modern_events_calendar_lite:4.7.5
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cpe:2.3:a:webnus:modern_events_calendar_lite:4.7.6
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cpe:2.3:a:webnus:modern_events_calendar_lite:4.7.7
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cpe:2.3:a:webnus:modern_events_calendar_lite:4.8.0
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cpe:2.3:a:webnus:modern_events_calendar_lite:4.8.1
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cpe:2.3:a:webnus:modern_events_calendar_lite:4.8.2
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cpe:2.3:a:webnus:modern_events_calendar_lite:4.8.3
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cpe:2.3:a:webnus:modern_events_calendar_lite:4.8.5
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cpe:2.3:a:webnus:modern_events_calendar_lite:4.9.0
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cpe:2.3:a:webnus:modern_events_calendar_lite:4.9.5
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cpe:2.3:a:webnus:modern_events_calendar_lite:5.0.0
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cpe:2.3:a:webnus:modern_events_calendar_lite:5.0.1
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cpe:2.3:a:webnus:modern_events_calendar_lite:5.0.2
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cpe:2.3:a:webnus:modern_events_calendar_lite:5.0.5
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cpe:2.3:a:webnus:modern_events_calendar_lite:5.1.0
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cpe:2.3:a:webnus:modern_events_calendar_lite:5.1.5
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cpe:2.3:a:webnus:modern_events_calendar_lite:5.1.6
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cpe:2.3:a:webnus:modern_events_calendar_lite:5.1.7
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cpe:2.3:a:webnus:modern_events_calendar_lite:5.1.8
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cpe:2.3:a:webnus:modern_events_calendar_lite:5.10.0
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cpe:2.3:a:webnus:modern_events_calendar_lite:5.10.5
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cpe:2.3:a:webnus:modern_events_calendar_lite:5.11.0
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cpe:2.3:a:webnus:modern_events_calendar_lite:5.11.5
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cpe:2.3:a:webnus:modern_events_calendar_lite:5.12.0
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cpe:2.3:a:webnus:modern_events_calendar_lite:5.12.5
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cpe:2.3:a:webnus:modern_events_calendar_lite:5.12.6
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cpe:2.3:a:webnus:modern_events_calendar_lite:5.13.0
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cpe:2.3:a:webnus:modern_events_calendar_lite:5.13.1
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cpe:2.3:a:webnus:modern_events_calendar_lite:5.13.5
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cpe:2.3:a:webnus:modern_events_calendar_lite:5.13.6
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cpe:2.3:a:webnus:modern_events_calendar_lite:5.14.0
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cpe:2.3:a:webnus:modern_events_calendar_lite:5.15.0
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cpe:2.3:a:webnus:modern_events_calendar_lite:5.15.5
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cpe:2.3:a:webnus:modern_events_calendar_lite:5.16.0
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cpe:2.3:a:webnus:modern_events_calendar_lite:5.16.1
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cpe:2.3:a:webnus:modern_events_calendar_lite:5.16.2
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cpe:2.3:a:webnus:modern_events_calendar_lite:5.16.5
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cpe:2.3:a:webnus:modern_events_calendar_lite:5.16.6
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cpe:2.3:a:webnus:modern_events_calendar_lite:5.17.0
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cpe:2.3:a:webnus:modern_events_calendar_lite:5.17.1
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cpe:2.3:a:webnus:modern_events_calendar_lite:5.17.2
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cpe:2.3:a:webnus:modern_events_calendar_lite:5.17.5
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cpe:2.3:a:webnus:modern_events_calendar_lite:5.17.6
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cpe:2.3:a:webnus:modern_events_calendar_lite:5.18.0
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cpe:2.3:a:webnus:modern_events_calendar_lite:5.18.5
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cpe:2.3:a:webnus:modern_events_calendar_lite:5.19.0
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cpe:2.3:a:webnus:modern_events_calendar_lite:5.19.1
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cpe:2.3:a:webnus:modern_events_calendar_lite:5.19.5
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cpe:2.3:a:webnus:modern_events_calendar_lite:5.2.0
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cpe:2.3:a:webnus:modern_events_calendar_lite:5.2.1
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cpe:2.3:a:webnus:modern_events_calendar_lite:5.2.2
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cpe:2.3:a:webnus:modern_events_calendar_lite:5.2.3
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cpe:2.3:a:webnus:modern_events_calendar_lite:5.2.5
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cpe:2.3:a:webnus:modern_events_calendar_lite:5.2.6
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cpe:2.3:a:webnus:modern_events_calendar_lite:5.2.7
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cpe:2.3:a:webnus:modern_events_calendar_lite:5.20.0
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cpe:2.3:a:webnus:modern_events_calendar_lite:5.20.5
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cpe:2.3:a:webnus:modern_events_calendar_lite:5.21.0
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cpe:2.3:a:webnus:modern_events_calendar_lite:5.21.1
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cpe:2.3:a:webnus:modern_events_calendar_lite:5.21.2
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cpe:2.3:a:webnus:modern_events_calendar_lite:5.21.5
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cpe:2.3:a:webnus:modern_events_calendar_lite:5.22.0
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cpe:2.3:a:webnus:modern_events_calendar_lite:5.22.1
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cpe:2.3:a:webnus:modern_events_calendar_lite:5.22.2
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cpe:2.3:a:webnus:modern_events_calendar_lite:5.22.3
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cpe:2.3:a:webnus:modern_events_calendar_lite:5.3.0
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cpe:2.3:a:webnus:modern_events_calendar_lite:5.3.5
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cpe:2.3:a:webnus:modern_events_calendar_lite:5.4.0
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cpe:2.3:a:webnus:modern_events_calendar_lite:5.4.5
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cpe:2.3:a:webnus:modern_events_calendar_lite:5.4.6
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cpe:2.3:a:webnus:modern_events_calendar_lite:5.5.0
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cpe:2.3:a:webnus:modern_events_calendar_lite:5.6.0
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cpe:2.3:a:webnus:modern_events_calendar_lite:5.6.1
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cpe:2.3:a:webnus:modern_events_calendar_lite:5.6.5
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cpe:2.3:a:webnus:modern_events_calendar_lite:5.7.0
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cpe:2.3:a:webnus:modern_events_calendar_lite:5.7.5
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cpe:2.3:a:webnus:modern_events_calendar_lite:5.8.0
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cpe:2.3:a:webnus:modern_events_calendar_lite:5.8.5
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cpe:2.3:a:webnus:modern_events_calendar_lite:5.9.0
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cpe:2.3:a:webnus:modern_events_calendar_lite:5.9.5
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cpe:2.3:a:webnus:modern_events_calendar_lite:6.0.0
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cpe:2.3:a:webnus:modern_events_calendar_lite:6.1.0
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cpe:2.3:a:webnus:modern_events_calendar_lite:6.1.5
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cpe:2.3:a:webnus:modern_events_calendar_lite:6.1.6
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cpe:2.3:a:webnus:modern_events_calendar_lite:6.10.0
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cpe:2.3:a:webnus:modern_events_calendar_lite:6.10.1
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cpe:2.3:a:webnus:modern_events_calendar_lite:6.10.5
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cpe:2.3:a:webnus:modern_events_calendar_lite:6.11.0
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cpe:2.3:a:webnus:modern_events_calendar_lite:6.11.5
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cpe:2.3:a:webnus:modern_events_calendar_lite:6.2.0
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cpe:2.3:a:webnus:modern_events_calendar_lite:6.2.5
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cpe:2.3:a:webnus:modern_events_calendar_lite:6.2.6
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cpe:2.3:a:webnus:modern_events_calendar_lite:6.2.7
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cpe:2.3:a:webnus:modern_events_calendar_lite:6.2.8
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cpe:2.3:a:webnus:modern_events_calendar_lite:6.2.9
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cpe:2.3:a:webnus:modern_events_calendar_lite:6.3.0
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cpe:2.3:a:webnus:modern_events_calendar_lite:6.4.0
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cpe:2.3:a:webnus:modern_events_calendar_lite:6.4.1
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cpe:2.3:a:webnus:modern_events_calendar_lite:6.4.2
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cpe:2.3:a:webnus:modern_events_calendar_lite:6.4.5
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cpe:2.3:a:webnus:modern_events_calendar_lite:6.4.7
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cpe:2.3:a:webnus:modern_events_calendar_lite:6.4.8
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cpe:2.3:a:webnus:modern_events_calendar_lite:6.4.9
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cpe:2.3:a:webnus:modern_events_calendar_lite:6.5.0
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cpe:2.3:a:webnus:modern_events_calendar_lite:6.5.1
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cpe:2.3:a:webnus:modern_events_calendar_lite:6.5.2
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cpe:2.3:a:webnus:modern_events_calendar_lite:6.5.3
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cpe:2.3:a:webnus:modern_events_calendar_lite:6.5.4
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cpe:2.3:a:webnus:modern_events_calendar_lite:6.5.5
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cpe:2.3:a:webnus:modern_events_calendar_lite:6.5.6
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cpe:2.3:a:webnus:modern_events_calendar_lite:6.5.7
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cpe:2.3:a:webnus:modern_events_calendar_lite:6.5.8
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cpe:2.3:a:webnus:modern_events_calendar_lite:6.5.9
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cpe:2.3:a:webnus:modern_events_calendar_lite:6.6.0
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cpe:2.3:a:webnus:modern_events_calendar_lite:6.6.1
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cpe:2.3:a:webnus:modern_events_calendar_lite:6.6.10
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cpe:2.3:a:webnus:modern_events_calendar_lite:6.6.12
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cpe:2.3:a:webnus:modern_events_calendar_lite:6.6.2
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cpe:2.3:a:webnus:modern_events_calendar_lite:6.6.3
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cpe:2.3:a:webnus:modern_events_calendar_lite:6.6.4
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cpe:2.3:a:webnus:modern_events_calendar_lite:6.6.5
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cpe:2.3:a:webnus:modern_events_calendar_lite:6.6.6
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cpe:2.3:a:webnus:modern_events_calendar_lite:6.6.8
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cpe:2.3:a:webnus:modern_events_calendar_lite:6.6.9
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cpe:2.3:a:webnus:modern_events_calendar_lite:6.7.0
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cpe:2.3:a:webnus:modern_events_calendar_lite:6.7.1
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cpe:2.3:a:webnus:modern_events_calendar_lite:6.7.2
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cpe:2.3:a:webnus:modern_events_calendar_lite:6.7.3
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cpe:2.3:a:webnus:modern_events_calendar_lite:6.8.0
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cpe:2.3:a:webnus:modern_events_calendar_lite:6.8.1
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cpe:2.3:a:webnus:modern_events_calendar_lite:6.8.10
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cpe:2.3:a:webnus:modern_events_calendar_lite:6.8.15
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cpe:2.3:a:webnus:modern_events_calendar_lite:6.8.2
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cpe:2.3:a:webnus:modern_events_calendar_lite:6.8.20
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cpe:2.3:a:webnus:modern_events_calendar_lite:6.8.21
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cpe:2.3:a:webnus:modern_events_calendar_lite:6.8.28
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cpe:2.3:a:webnus:modern_events_calendar_lite:6.8.30
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cpe:2.3:a:webnus:modern_events_calendar_lite:6.8.5
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cpe:2.3:a:webnus:modern_events_calendar_lite:6.9.0
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cpe:2.3:a:webnus:modern_events_calendar_lite:6.9.5
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cpe:2.3:a:webnus:modern_events_calendar_lite:6.9.6
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cpe:2.3:a:webnus:modern_events_calendar_lite:7.0.0