ProjeQtor < 12.4.4 Stored XSS via checkValidHtmlText()
33Vexday Risk Score
No sign of exploitation. It has a public proof of concept.
ssvc Attendcvss 5.1epss 0.2%
exploitation probability
0.2%top 92% of all CVEs
observed exploitation
nono source reports it
2 public exploit(s)
ProjeQtor versions 7.0 through 12.4.3 contain a stored cross-site scripting vulnerability in the checkValidHtmlText() function within Security.php that fails to properly sanitize user input by only detecting specific patterns while returning unsanitized strings without output encoding. Attackers can inject malicious payloads that bypass the filter using alternative syntax such as img tags with event handlers, which are stored and executed in the browsers of users viewing the affected content.
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N
Affected products
ProjeQtor · ProjeQtorpublic PoCs found — 2
cve_referencedamiri.fr/en/cves/CVE-2026-41466unverifiedcve_referencegryfman.fr/cves/CVE-2026-41466unverified⚠ Public resources, to assess the exposure of systems you control or are authorized to test. Test only with authorization.