CVE-2026-44742

Published: May 7, 2026Modified: Jun 17, 2026

6.1

Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Exploitability: 2.8 / Impact: 2.7

Source: NVD

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 (1)

Products: Postorius Project: Postorius

Postorius Project

1 product

Postorius

Configuration A

1 vulnerable

Vulnerable Software	Affected Versions
Postorius Project Postorius	Up to 1.3.13

Related CWEs

CWE-79

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users.

References (5)

https://gitlab.com/mailman/postorius/-/commit/c4706abd05ba6bcf472fc674b160d3a9d6a4868b

Source: cve@mitre.org

Patch

https://gitlab.com/mailman/postorius/-/issues/620

Source: cve@mitre.org

Issue TrackingVendor Advisory

https://gitlab.com/mailman/postorius/-/merge_requests/972

Source: cve@mitre.org

Issue TrackingPatch

https://www.openwall.com/lists/oss-security/2026/05/07/3

Source: cve@mitre.org

Mailing ListPatchThird Party Advisory

https://lists.debian.org/debian-lts-announce/2026/05/msg00045.html

Source: af854a3a-2127-422b-91ae-364da2661108

Timeline

No history available yet.