Vulnerability Details CVE-2021-35208
An issue was discovered in ZmMailMsgView.js in the Calendar Invite component in Zimbra Collaboration Suite 8.8.x before 8.8.15 Patch 23. An attacker could place HTML containing executable JavaScript inside element attributes. This markup becomes unescaped, causing arbitrary markup to be injected into the document.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.014
EPSS Ranking 79.5%
CVSS Severity
CVSS v3 Score 5.4
CVSS v2 Score 3.5
References
- https://blog.sonarsource.com/zimbra-webmail-compromise-via-email
- https://wiki.zimbra.com/wiki/Security_Center
- https://wiki.zimbra.com/wiki/Zimbra_Releases/8.8.15/P23
- https://wiki.zimbra.com/wiki/Zimbra_Releases/9.0.0/P16
- https://wiki.zimbra.com/wiki/Zimbra_Security_Advisories
- https://blog.sonarsource.com/zimbra-webmail-compromise-via-email
- https://wiki.zimbra.com/wiki/Security_Center
- https://wiki.zimbra.com/wiki/Zimbra_Releases/8.8.15/P23
- https://wiki.zimbra.com/wiki/Zimbra_Releases/9.0.0/P16
- https://wiki.zimbra.com/wiki/Zimbra_Security_Advisories
Products affected by CVE-2021-35208
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cpe:2.3:a:zimbra:collaboration:8.8
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cpe:2.3:a:zimbra:collaboration:8.8.0
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cpe:2.3:a:zimbra:collaboration:8.8.10
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cpe:2.3:a:zimbra:collaboration:8.8.11
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cpe:2.3:a:zimbra:collaboration:8.8.12
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cpe:2.3:a:zimbra:collaboration:8.8.15
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cpe:2.3:a:zimbra:collaboration:8.8.2
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cpe:2.3:a:zimbra:collaboration:8.8.3
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cpe:2.3:a:zimbra:collaboration:8.8.4
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cpe:2.3:a:zimbra:collaboration:8.8.6
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cpe:2.3:a:zimbra:collaboration:8.8.7
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cpe:2.3:a:zimbra:collaboration:8.8.8
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cpe:2.3:a:zimbra:collaboration:8.8.9