Vulnerability Details CVE-2026-35054
XenForo before 2.3.9 is vulnerable to stored cross-site scripting (XSS) related to BB code rendering. An attacker can inject malicious scripts through BB code that are stored and executed when other users view the content.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.0
EPSS Ranking 8.1%
CVSS Severity
CVSS v3 Score 6.4
References
Products affected by CVE-2026-35054
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cpe:2.3:a:xenforo:xenforo:-
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cpe:2.3:a:xenforo:xenforo:2.2.14
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cpe:2.3:a:xenforo:xenforo:2.2.16
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cpe:2.3:a:xenforo:xenforo:2.2.7