MEDIUMCVSS v3.1 5.4Vulnerability

CVE-2026-121551

PostfixAdmin through 4.0.5 contains a stored cross-site scripting vulnerability that allows authenticated mailbox users to inject script by creating a TOTP exception with an unescaped description. When a global administrator views totp-exceptions.php, the script runs in the admin session and can issue authenticated admin requests using the page's CSRF token.

Properties

Severity
MEDIUM
Nvd fetched at
2026-11-03T17:20:13.885968+00:00
Cvss severity
MEDIUM
Cvss score
5.4
Retrieved at
2026-11-03T17:21:18+00:00
Score
5.4
Cvss version
3.1
Last source
NVD
Cve id
CVE-2026-121551
Cvss vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
First seen by Signal
2026-11-03T17:21:18+00:00
Vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
Published at
2026-11-03T16:17:27.077
Last modified
2026-11-03T16:30:17.150

Related Entities (1)

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CVE-2026-121551 (CVSS v3.1 5.4) — Ninja Signal Threat Intelligence | Ninja Signal