CVE-2026-44742

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 v3 7.2 HIGH

7.2^/10

CVSS v3 : HIGH

Vector :

Exploitability : 3.9 / Impact : 2.7

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact LOW

Integrity Impact LOW

Availability Impact NONE

Scope CHANGED

References

Link	Resource
https://gitlab.com/mailman/postorius/-/commit/c4706abd05ba6bcf472fc674b160d3a9d6a4868b	Patch
https://gitlab.com/mailman/postorius/-/issues/620	Issue Tracking Vendor Advisory
https://gitlab.com/mailman/postorius/-/merge_requests/972	Issue Tracking Patch
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

Configurations

Configuration 1 (hide)

cpe:2.3:a:postorius_project:postorius:*:*:*:*:*:*:*:*

History

No history.

Information

Published : 2026-05-07 19:16

Updated : 2026-06-17 10:51

NVD link : CVE-2026-44742

Mitre link : CVE-2026-44742

CVE.ORG link : CVE-2026-44742

JSON object : View

Products Affected

postorius_project

postorius

CWE

CWE-79

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

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