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CVE-2025-62508— Citizen vulnerable to stored XSS in sticky header button messages

Quick assessment

Affected
StarCitizenTools mediawiki-skins-Citizen
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Citizen是Star Citizen Wiki团队的一款美观、易用、响应迅速的MediaWiki皮肤。 Citizen 3.3.0版本至3.9.0版本存在跨站脚本漏洞，该漏洞源于stickyHeader.js中copyButtonAttributes函数处理不当，可能导致存储型跨站脚本攻击。

CVSS 6.5 · Medium EPSS 0.42% · P35

Possible ATT&CK Techniques 1 AI

T1059.007 · JavaScript
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I. Basic Information for CVE-2025-62508

Vulnerability Information
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Vulnerability Title
Citizen vulnerable to stored XSS in sticky header button messages
Source: CVE Program / CVE List V5
Vulnerability Description
Citizen is a MediaWiki skin that makes extensions part of the cohesive experience. Citizen from 3.3.0 to 3.9.0 are vulnerable to stored cross-site scripting in the sticky header button message handling. In stickyHeader.js the copyButtonAttributes function assigns innerHTML from a source element’s textContent when copying button labels. This causes escaped HTML in system message content (such as citizen-share, citizen-view-history, citizen-view-edit, and nstab-talk) to be interpreted as HTML in the sticky header, allowing injection of arbitrary script by a user with the ability to edit interface messages. The vulnerability allows a user with the editinterface right but without the editsitejs right (by default the sysop group has editinterface but may not have editsitejs) to execute arbitrary JavaScript in other users’ sessions, enabling unauthorized access to sensitive data or actions. The issue is fixed in 3.9.0.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
在Web页面生成时对输入的转义处理不恰当(跨站脚本)
Source: CVE Program / CVE List V5
Vulnerability Title
Citizen 跨站脚本漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Citizen是Star Citizen Wiki团队的一款美观、易用、响应迅速的MediaWiki皮肤。 Citizen 3.3.0版本至3.9.0版本存在跨站脚本漏洞，该漏洞源于stickyHeader.js中copyButtonAttributes函数处理不当，可能导致存储型跨站脚本攻击。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
StarCitizenTools mediawiki-skins-Citizen >= 3.3.0, < 3.9.0 -

II. Public POCs for CVE-2025-62508

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III. Intelligence Information for CVE-2025-62508

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Vendor Advisories for CVE-2025-62508 (1)

IV. Related Vulnerabilities

Same product: mediawiki-skins-Citizen
Same vendor: StarCitizenTools
Same weakness: CWE-79

V. Comments for CVE-2025-62508

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