High 7.2Published May 7, 2026

CVE-2026-44742Postorius 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.

Updated under an hour ago (Oct 27, 2026, 3:50 AM ET)

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Exploited in the last 30 days

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: 7.2 HIGH (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:N/UI:N/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: mitre
NVD analysis: Modified
Record last updated: May 25, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

Postorius project Postorius postorius_project:postorius (from the name)	through 1.3.13	CNA record
postorius_project postorius postorius_project:postorius	through 1.3.13	NVD

References

References

https://gitlab.com/mailman/postorius/-/commit/c4706abd05ba6bcf472fc674b160d3a9d6a4868b	patch
https://gitlab.com/mailman/postorius/-/merge_requests/972	issue-tracking, patch
https://gitlab.com/mailman/postorius/-/issues/620	issue-tracking, vendor-advisory
https://www.openwall.com/lists/oss-security/2026/05/07/3	mailing-list, patch, third-party-advisory
https://lists.debian.org/debian-lts-announce/2026/05/msg00045.html

The CVE record on cve.org NVD's entry

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.