CVE-2026-0817

MEDIUM EPSS 16.2%
Published Jan 9, 20265mo ago · Modified Jun 17, 20261w ago
5.3 CVSS 3.1
Medium
Find Similar
Published Jan 9, 2026 5mo ago
Last Modified Jun 17, 2026 1w ago

Description

Missing Authorization vulnerability in Wikimedia Foundation MediaWiki - CampaignEvents extension allows Privilege Abuse.This issue affects MediaWiki - CampaignEvents extension: 1.45, 1.44, 1.43, 1.39.

CVSS Details

Base Score
5.3
Exploitability
3.9
Impact
1.4
Vector string
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
Attack Vector Network
Attack Complexity Low
Privileges Required None
User Interaction None
Scope Unchanged
Confidentiality Low
Integrity None
Availability None

Threat Intelligence

EPSS Exploit Probability
16.2% percentile
Exploit & Patch Status
No Known Exploit
Patch Available

Weaknesses 1

CWE-862 Missing Authorization Authorization

Affected Products 4

VendorProductVersionRange
wikimediacampaignevents1.39any
wikimediacampaignevents1.43any
wikimediacampaignevents1.44any
wikimediacampaignevents1.45any

References 2

Remediation

  • gerrit.wikimedia.org https://gerrit.wikimedia.org/r/q/I7ed0049691258c8bd2555e599b9b88490fbe3358
    Patch