CVE-2026-58037

mediumcovered by 3 sourcesfirst seen 2026-07-01

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 risk0.23% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 14% 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-2026-58037: Improper Neutralization of Input During Web Page Generation (XSS or 'Cross-site Scripting') vu…nvd · 2026-07-01

External references

NVD record for CVE-2026-58037

CVE.org record

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