CVE-2026-58517: mediawiki from 1.43.0 (inclusive), before 1.43.9 (exclusive), from 1.44.0 (inclusive), before 1.44.6 (exclusive), from…

CVE-2026-58517. CVSS 3.1 base score 4.3 (MEDIUM, NVD). EPSS 0.00329 (percentile 0.24876), scored 24-Oct-2026.

Affected technology

mediawiki · from 1.43.0 (inclusive), before 1.43.9 (exclusive)
mediawiki

mediawiki · from 1.44.0 (inclusive), before 1.44.6 (exclusive)
mediawiki

mediawiki · from 1.45.0 (inclusive), before 1.45.4 (exclusive)
mediawiki

Mediawiki - WikiLambda Extension · * to before 1.43.9,1.44.6,1.45.4
The Wikimedia Foundation

Component: Not specified by the source

Attack conditions (Source advisory, CVSS 4.0): Network (remote) · No privileges required · No user interaction required

What an attacker can do

The source reports that an attacker could get past authentication checks. Source advisory’s CVSS 4.0 assessment (base score 6.9/10) rates confidentiality, integrity and availability impact as low.

Published 25-Oct-2026 19:52 UTC

CWE: CWE-288
CCR priority: 17.3 /100 (P5)
CVSS 3.1: 4.3 /10 · CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N · NVD
EPSS: 0.00329 · percentile 0.25838 · 2026-10-25
KEV: no

Provenance

FIRST EPSS daily exploit-probability · Source record · observed 2026-10-25 19:52:47.952465+00:00 UTC
NVD CVE API 2.0 · Source record · observed 2026-10-25 19:51:06.643138+00:00 UTC

Stable permalink: https://cybercodered.org/item/cve-cve-2026-58517.html