CVE-2026-44742
mediumPostorius 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.
Vendor / product: Postorius Project — postorius
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
6.1
6.1 (CVSS v3.1)
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N Severity source: NVD CVSS v3.1 (nvd@nist.gov)
Timeline (UTC)
Published: 2026-05-07 19:16
Modified: 2026-11-11 23:10
NVD status: Modified
Last synced 3 hours ago
Verified against the source API 2026-11-11 23:13 UTC
Exploitation
Not listed in CISA KEV (as of last catalog sync)
Absence from KEV does not mean a CVE is not exploited. Exploitation status: unknown (no authoritative evidence in our sources).
Affected products
postorius_project / postorius ≤1.3.13
Weakness classification (CWE)
Source: NVD / CISA. “NVD-CWE-Other” and “NVD-CWE-noinfo” mean NVD could not assign a specific weakness.
Mitigation & advisories
Vendor advisory: https://gitlab.com/mailman/postorius/-/issues/620
Patch / mitigation: https://gitlab.com/mailman/postorius/-/commit/c4706abd05ba6bcf472fc674b160d3a9d6a4868b
Patch / mitigation: https://gitlab.com/mailman/postorius/-/merge_requests/972
Patch / mitigation: https://www.openwall.com/lists/oss-security/2026/05/07/3
References
- https://gitlab.com/mailman/postorius/-/commit/c4706abd05ba6bcf472fc674b160d3a9d6a4868b cve@mitre.org
- https://gitlab.com/mailman/postorius/-/issues/620 cve@mitre.org
- https://gitlab.com/mailman/postorius/-/merge_requests/972 cve@mitre.org
- https://www.openwall.com/lists/oss-security/2026/05/07/3 cve@mitre.org
- https://lists.debian.org/debian-lts-announce/2026/05/msg00045.html af854a3a-2127-422b-91ae-364da2661108
Data sources
NVD CVE API 2.0 — fetched 2026-11-11 23:13 UTC · record ↗