Vulnerability Details CVE-2021-20787
Cross-site scripting vulnerability in GroupSession (GroupSession Free edition from ver2.2.0 to the version prior to ver5.1.0, GroupSession byCloud from ver3.0.3 to the version prior to ver5.1.0, and GroupSession ZION from ver3.0.3 to the version prior to ver5.1.0) allows a remote attacker to inject an arbitrary script by sending a specially crafted request to a specific URL.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.002
EPSS Ranking 44.1%
CVSS Severity
CVSS v3 Score 4.8
CVSS v2 Score 3.5
References
Products affected by CVE-2021-20787
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cpe:2.3:a:groupsession:groupsession:*
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cpe:2.3:a:groupsession:groupsession_bycloud:*
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cpe:2.3:a:groupsession:groupsession_zion:*