Vulnerability Description
Postorius through 1.3.13 does not escape HTML in the message subject when rendering it in the Held messages pop-up, as exploited in the wild in May 2026.
CVSS Score
7.2
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Postorius Project | Postorius | <= 1.3.13 |
Related Weaknesses (CWE)
References
- https://gitlab.com/mailman/postorius/-/commit/c4706abd05ba6bcf472fc674b160d3a9d6Patch
- https://gitlab.com/mailman/postorius/-/issues/620Vendor AdvisoryIssue Tracking
- https://gitlab.com/mailman/postorius/-/merge_requests/972Issue TrackingPatch
- https://www.openwall.com/lists/oss-security/2026/05/07/3Mailing ListPatchThird Party Advisory
FAQ
What is CVE-2026-44742?
CVE-2026-44742 is a vulnerability with a CVSS score of 7.2 (HIGH). Postorius through 1.3.13 does not escape HTML in the message subject when rendering it in the Held messages pop-up, as exploited in the wild in May 2026.
How severe is CVE-2026-44742?
CVE-2026-44742 has been rated HIGH with a CVSS base score of 7.2/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-44742?
Check the references section above for vendor advisories and patch information. Affected products include: Postorius Project Postorius.