Skip to content
Patch Next
Sign inAdd to your agent

← Public intelligence

Packagist package

mediawiki/maps

Open actionable advisories and recorded vendor fixes. This public package view has no inventory attached and cannot establish whether your deployment is affected. A vendor fix never resolves your finding; verify your installed version and the source guidance.

Open advisories

1 actionable advisory, newest first. Withdrawn advisories and news are excluded. Coverage is partial.

  1. High, CVSS 8.6PackagistPublished

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

    CVE-2026-52854 · GHSA-4h7g-5542-v3fc

    Affected
    • Packagist mediawiki/maps < 12.1.3
    Fixed in
    12.1.3· Vendor fix available
    Issue
    Stored XSS through wikitext can be performed by inserting malicious HTML into the overlays parameter of the displaymap parser function when using the leaflet service. Details The maps extension doesn't escape overlay names before passing them to leaflet. Leaflet then inserts them as HTML: https://github.com/ProfessionalWiki/Maps/blob/ca5139fabd75f3c34f47ea3fd161306506b053bc/resources/lib/leaflet/leaflet.js#L5243 PoC Preview the following wikitext, using the default configuration options of the extension: Impact Stored XSS can be performed by any user with the edit permission.

    Recommended action: Upgrade to 12.1.3 or later, then redeploy and verify.A vendor fix does not resolve your finding until you verify it in your own systems.

    Sources:github.comSource checked Evidence →