CVE-2026-58033
Multiple security issues were discovered in MediaWiki, a website engine for collaborative work, which could result in information disclosure, code execution via unsafe deserialisation or cross-site scripting. https://security-tracker.debian.org/tracker/DSA-6380-1
CSIRTS triage
- What
- Multiple security issues could result in information disclosure, code execution via unsafe deserialization, or cross-site scripting.
- Who is affected
- Deployments of MediaWiki.
- Urgency
- Remediation is important as these vulnerabilities could lead to significant security risks.
- Action
- Update to the latest version of MediaWiki.
AI-assisted analysis generated from the source advisory — verify against the original.
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Exploitation outlook
- Low exploitation risk0.37% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 29% of all EPSS-scored CVEs.
Advisory coverage (3)
- medium[UPDATE] [medium] MediaWiki: Multiple vulnerabilitiescert-bund · 2026-07-06
- unknownDSA-6380-1 mediawiki - security updatedebian · 2026-07-05
- unknownCVE-2026-58033: Exposure of Sensitive Information to an Unauthorized Actor vulnerability in Wikimedia Foundati…nvd · 2026-07-01
External references
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