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Medium 5.4Published Apr 27, 2026

CVE-2026-41466ProjeQtor < 12.4.4 Stored XSS via checkValidHtmlText()

Updated under an hour ago ()

Does this affect you?

It affects ProjeQtor. Add what you run to find out whether that includes you.

No exploitation reported and no EPSS estimate yet.

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
5.4 MEDIUM (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
Weakness (CWE)
CWE-79
Known exploited
Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days)
Not loaded for this CVE
Assigned by
VulnCheck
NVD analysis
Deferred
Record last updated
Jul 14, 2026
First seen by InfoSec Signals
Oct 9, 2026

Affected products

Affected products
ProjeQtor ProjeQtor
projeqtor:projeqtor (from the name)
from 7.0 through 12.4.3; 12.4.4 not affected
CNA record

References

References

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.

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