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.
Affected products
Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.
Postorius project Postorius
Default version status: unknown
0 to ≤ 1.3.13affected
pkg:pypi/postoriusReferences
- https://gitlab.com/mailman/postorius/-/commit/c4706abd05ba6bcf472fc674b160d3a9d6a4868b ↗
- https://gitlab.com/mailman/postorius/-/merge_requests/972 ↗
- https://gitlab.com/mailman/postorius/-/issues/620 ↗
- https://www.openwall.com/lists/oss-security/2026/05/07/3 ↗
- https://lists.debian.org/debian-lts-announce/2026/05/msg00045.html ↗