CVE-2026-77610: Semantic MediaWiki has a query debug output XSS (`DebugFormatter`)

medium Affects mediawiki/semantic-media-wiki. Feed 2026.10.29.4, updated 2026-10-29; published .

Semantic MediaWiki has a query debug output XSS (`DebugFormatter`)

Package
mediawiki/semantic-media-wiki Composer
Affected versions
<7.2.0
Fixed in
7.2.0
Severity
medium  CVSS 6.1
Exploitation
not on CISA KEV · EPSS 0% (20.8th percentile)
Published
2026-09-18
Source
osv.dev

References

CWE-79
NVD recordmediawiki/semantic-media-wiki advisories

Am I affected?

Find out in one command. phpwarden checks your composer.lock against this advisory and 20,000+ others, ranked by real-world exploitation (CISA KEV + EPSS). Free, offline, open data.

# PHP projects (recommended)
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