CVE-2023-22912

PoC —

CVSS 3.1

5.3 medium

EPSS

<1%p32

Published

Jan 20, 2023 (Jan 20, 2023)

Modified

Jun 17, 2026

Description

An issue was discovered in MediaWiki before 1.35.9, 1.36.x through 1.38.x before 1.38.5, and 1.39.x before 1.39.1. CheckUser TokenManager insecurely uses AES-CTR encryption with a repeated (aka re-used) nonce, allowing an adversary to decrypt.

Vendors: mediawiki
Products: mediawiki
Weakness: CWE-330
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

NVD CVE.org GitHub PoCs EPSS (0.4%)

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