Medium

starcitizentools/citizen-skin allows stored XSS in search no result messages

  • Disclosed: 13.06.2025
  • Updated: 11.10.2026 10:22

Summary

The citizen-search-noresults-title and citizen-search-noresults-desc system messages are inserted into raw HTML, allowing anybody who can edit those messages to insert arbitrary HTML into the DOM.

Details

The system messages are inserted as raw HTML by the mustache template: https://github.com/StarCitizenTools/mediawiki-skins-Citizen/blob/407052e7069bdeae927d6f1a2a1c9a45b473bf9a/resources/skins.citizen.search/templates/TypeaheadPlaceholder.mustache#L8-L9

PoC

  1. Edit citizen-search-noresults-title and citizen-search-noresults-desc to <img src="" onerror="alert('citizen-search-noresults-title')"> and <img src="" onerror="alert('citizen-search-noresults-desc')"> (script tags don't work here due to the way the HTML is inserted)
  2. Open the search bar and search for a page that doesn't exist to get the "no results" messages to show up

image image

Impact

This impacts wikis where a group has the editinterface but not the editsitejs user right.

Affected software

Click a technology to see all vulnerabilities affecting it.

PlatformPackageVulnerable versionsFixed in
Composer package starcitizentools/citizen-skin >= 2.31.0, < 3.3.1 3.3.1

References

CVSS score 6.5/10
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:N
Weakness (CWE)
CWE-79
Platform
Composer
Package
starcitizentools/citizen-skin
Disclosed
13.06.2025
Updated
11.10.2026 10:22

Sources and licenses

OSV / GitHub Advisory Database - GHSA-86xf-2mgp-gv3g - CC BY 4.0

Vulnerability history: starcitizentools/citizen-skin

All published vulnerabilities of this package (Composer package), newest first. Shows whether this is a one-off slip or a package that needs watching.

All (9) in the archive
Total entries
9
First → latest
09.2024 10.2025
Without a fix
0
Exploited in attacks
0

Severity breakdown

  • High 2
  • Medium 7

Disclosures per year

  1. 2024: 1
  2. 2025: 8
  3. 2026: 0
Severity:
  1. High · 8.6 CVE-2025-53370 >= 1.9.4, < 3.4.0 3.4.0
  2. starcitizentools/citizen-skin allows stored XSS in search no result messages this entry
    Medium · 6.5 CVE-2025-49576 >= 2.31.0, < 3.3.1 3.3.1

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