CVE-2026-44742

7.2 HIGH

Published: May 07, 2026 Modified: May 26, 2026

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.

AI Explanation

Get an AI-powered plain-language explanation of this vulnerability and remediation steps.

CVSS v3.x Details

0.0 Low Medium High Critical 10.0

Vector String

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

References to Advisories, Solutions, and Tools

Patch Vendor Advisory Exploit Third Party Advisory

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

Source: cve@mitre.org

Patch

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

Source: cve@mitre.org

Issue Tracking Vendor Advisory

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

Source: cve@mitre.org

Issue Tracking Patch

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

Source: cve@mitre.org

Mailing List Patch Third Party Advisory

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

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

5 reference(s) from NVD

Quick Stats

CVSS v3 Score

7.2 / 10.0

EPSS (Exploit Probability)

0.2%

15th percentile

Exploitation Status

Not in CISA KEV

Weaknesses (CWE)

CWE-79

Affected Vendors

postorius_project

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