XSS in Wiki.js
Key facts
- Attack vector
- Network
- Privileges required
- High
- User interaction
- Required
- Attack complexity
- Low
- Impact type
- Cross-site scripting
- Confidentiality · integrity · availability
- High · Low · None
- Fix status
- Fixed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-79.
Summary
In Wiki.js before 2.3.81, there is a stored XSS in the Markdown editor. An editor with write access to a page, using the Markdown editor, could inject an XSS payload into the content. If another editor (with write access as well) load the same page into the Markdown editor, the XSS payload will be executed as part of the preview panel. The rendered result does not contain the XSS payload as it is stripped by the HTML Sanitization security module. This vulnerability only impacts editors loading the malicious page in the Markdown editor. This has been patched in 2.3.81.
Why it matters now
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
Remediation
- Fix · CNA Wiki.js (Requarks) Fixed in 2.3.81
Timeline
- 2026-10-02 Threatist record created from CVE-2020-11051
References
More Requarks Wiki.js vulnerabilities
- TI-2026-32203 Wiki.js: Privilege Escalation via Missing Group Validation in users.update CVSS 4.0HIGH 8.6
- TI-2021-07999 Requarks wiki.js - Stored Cross-Site Scripting (XSS) in markdown editor CVSS 3.1MEDIUM 5.4
- TI-2025-35387 Requarks Wiki.js 2.5.307 does not properly revoke or invalidate active JWT tokens when a… CVSS 3.1CRITICAL 9.1
- TI-2020-12008 Directory Traversal in Wiki.js CVSS 3.1HIGH 8.6
- TI-2022-07706 Improper write access check in Requarks/wiki CVSS 3.1HIGH 8.1
- TI-2021-19662 Stored XSS in non-image uploads in Requarks/wiki CVSS 3.1HIGH 8.2
Sources
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences