Docmost Affected by Stored XSS in Public Share Page
Key facts
- Attack vector
- Network
- Privileges required
- Low
- User interaction
- Required
- Attack complexity
- Low
- Impact type
- Cross-site scripting
- Confidentiality · integrity · availability
- High · High · None
- Fix status
- Fixed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-79.
Summary
Docmost is open-source collaborative wiki and documentation software. From 0.20.0 and before 0.25.0, the public share page functionality in Docmost does not properly HTML-escape page titles before inserting them into meta tags and the title tag. This allows Stored Cross-Site Scripting (XSS) attacks, where an attacker can execute arbitrary JavaScript in the context of any user who opens a shared page link. This vulnerability is fixed in 0.25.0.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- Poc
- Automatable
- No
- Technical impact
- Total
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
Remediation
- Fix · CNA docmost (docmost) Fixed in 0.25.0
Timeline
- 2026-10-02 Threatist record created from CVE-2026-24045
References
More Docmost vulnerabilities
- TI-2026-17859 Docmost affected by an Arbitrary File Write via Zip Import Feature (ZipSlip) CVSS 3.1CRITICAL 9.8
- TI-2025-35043 Cross Site Scripting vulnerability in docmost v.0.21.0 and before allows an attacker to execute arbitrary code CVSS 3.1MEDIUM 6.1
- TI-2026-19029 Docmost is vulnerable to stored Cross-Site Scripting (XSS) through Mermaid rendering CVSS 4.0MEDIUM 6.3
- TI-2026-26508 Docmost has cross-page attachment overwrite via flawed attachmentId overwrite validation CVSS 3.1MEDIUM 5.4
- TI-2026-26507 Docmost page content has stored XSS via unsanitized attachment URLs CVSS 3.1MEDIUM 5.4
- TI-2026-29581 Docmost: XSS in Comments with JavaScript URI CVSS 3.1MEDIUM 5.4
Sources
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences