How to Fix CVE-2026-41467: ProjeQtor (Bundle Sibling)
By Sai Kiran Pandrala
Last verified: 2026-05-25
CVE-2026-41467 is a sibling vulnerability in the same vendor advisory as CVE-2026-41462. Applying the patched build named in the primary write-up closes this CVE as well.
| Severity | CVSS 5.1 - Medium |
|---|---|
| Actively exploited? | Not currently in CISA KEV |
| Affected | Same as the bundle - see CVE-2026-41462 |
| Fixed in | Same patched build as CVE-2026-41462 (12.4.4) |
| Type (CWE) | CWE-79: CWE-79 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') |
What's different about CVE-2026-41467?
ProjeQtor versions 7.0 through 12.4.3 contain a stored cross-site scripting vulnerability in the file upload functionality where the checkValidFileName() function fails to restrict HTML and HTM file uploads. Authenticated attackers can upload HTML files containing arbitrary JavaScript through the image upload or attachment endpoints, and any user accessing the uploaded file URL will execute the embedded JavaScript in their browser.
The technical impact and remediation are identical to the primary CVE in the bundle. The same vendor patch closes both.
How to fix CVE-2026-41467
Apply the patched build per the primary write-up: How to Fix CVE-2026-41462.
The patch installation procedure, verification commands, and interim mitigations are documented there. Reusing one runbook keeps the rollout consistent across the bundle.
Frequently asked questions
Is CVE-2026-41467 fixed by the same patch as CVE-2026-41462?
Yes. CVE-2026-41467 ships in the same vendor advisory as CVE-2026-41462. Applying the patched build named in the primary write-up closes both.
What is the CVSS score for CVE-2026-41467?
The CVSS base score is 5.1 (Medium).
Is it being exploited?
It is not currently listed in CISA KEV.
References
- Official vendor advisory: https://www.vulncheck.com/advisories/projeqtor-stored-xss-via-checkvalidfilename
- NVD entry: https://nvd.nist.gov/vuln/detail/CVE-2026-41467
- CISA KEV catalog: https://www.cisa.gov/known-exploited-vulnerabilities-catalog
- Primary write-up: How to Fix CVE-2026-41462
*Part of the ProjeQtor bundle. Full procedure at CVE-2026-41462.*