CVE-2025-53370
Citizen vulnerable to Stored XSS through short descriptions
描述
### Summary Short descriptions set via the [ShortDescription extension](https://www.mediawiki.org/wiki/Extension:ShortDescription) are inserted as raw HTML by the Citizen skin, allowing any user to insert arbitrary HTML into the DOM by editing a page. ### Details The `shortdesc` property, which contains unsanitized user input, is retrieved from the OutputPage and returned as the tagline: https://github.com/StarCitizenTools/mediawiki-skins-Citizen/blob/0d8a44011e02a081618359a1e90f462478e807aa/includes/Components/CitizenComponentPageHeading.php#L249-L251 The tagline is then provided to the template data: https://github.com/StarCitizenTools/mediawiki-skins-Citizen/blob/0d8a44011e02a081618359a1e90f462478e807aa/includes/Components/CitizenComponentPageHeading.php#L270-L275 The template then inserts the tagline into raw HTML without doing any escaping: https://github.com/StarCitizenTools/mediawiki-skins-Citizen/blob/0d8a44011e02a081618359a1e90f462478e807aa/templates/PageHeading.mustache#L12 ### PoC 1. Enable Citizen and ShortDescription 2. Add `{{SHORTDESC:<img src="" onerror="alert('citizen shortdescription xss')">}}` to a page 3. Visit the page   ### Impact Arbitrary HTML can be inserted into the DOM by any user, allowing for JavaScript to be executed.
如何修補 CVE-2025-53370
要修補 CVE-2025-53370,請將受影響套件升級到下列已修補版本。
- —升級至 3.4.0 或更新版本
CVE-2025-53370 正在被利用嗎?
低 — EPSS 為 0.3%,目前沒有觀察到大規模利用活動。
受影響套件(1)
- >= 1.9.4, < 3.4.0