CVE-2026-44742 HIGH

CVE-2026-44742

Vendor Postorius Project
Product Postorius
Weakness CWE-79 · XSS
Published May 7, 2026
Last update May 25, 2026
View on NVD All CVEs

CVSS base score

7.2/10
Attack vector Network
Attack complexity Low
Privileges required None
User interaction None
Confidentiality Low
Integrity Low

CVSS vector

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

What the vulnerability does

01Description

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.

Key dates

02Disclosure timeline

May 7, 2026 CVE published
May 25, 2026 Record updated