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CVE-2026-52854: mediawiki/maps has stored XSS through the overlays parameter in the display_map parser function

high Affects mediawiki/maps. Feed 2026.10.29.4, updated 2026-10-29; published ; advisory modified .

mediawiki/maps has stored XSS through the overlays parameter in the display_map parser function

Package
mediawiki/maps Composer
Affected versions
<12.1.3
Fixed in
12.1.3
Severity
high  CVSS 8.6
Exploitation
not on CISA KEV · EPSS 1% (47.5th percentile)
Published
2026-07-02
Source
osv.dev

References

CWE-79CWE-80
NVD recordmediawiki/maps advisories

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