Security readout for executives and security teams
Plain-English summary
CVE-2026-24045 affects Docmost public shared pages. A user with permission to create or edit content can place a malicious page title that runs JavaScript when someone opens the shared link. This can expose or modify data in the victim’s browser session. Docmost fixed the issue in version 0.25.0.
Executive priority
Prioritize remediation for externally reachable Docmost deployments or environments where many users open shared documentation links. The issue is high severity but not reported as actively exploited in the provided sources. Upgrade planning should be prompt, especially for collaboration spaces with mixed-trust contributors.
Technical view
Docmost versions 0.20.0 through before 0.25.0 fail to properly HTML-escape page titles before inserting them into public share page meta tags and the title tag. This is stored XSS, tracked as CWE-79, with CVSS 3.1 score 7.3. The attack requires low privileges and user interaction by a victim opening the shared page link.
Likely exposure
Organizations running Docmost >=0.20.0 and <0.25.0 are potentially exposed, especially if public share links are enabled or commonly used. Exposure depends on whether untrusted or less-trusted users can create or modify page titles that later get shared publicly.
Exploitation context
The provided sources do not report active exploitation, and the CVE is not listed as CISA KEV in the supplied bundle. Practical exploitation requires an authenticated or otherwise privileged content author and a victim who opens the public shared page link.
Researcher notes
The fix is associated with Docmost v0.25.0 and commit f3f74c591f32f85b8aa9a98ed884a7dd455780f9. Review escaping behavior around title and meta tag rendering on public share pages. Avoid relying only on authentication controls, because stored XSS impacts downstream viewers who open generated share links.
Mitigation direction
- Upgrade Docmost to version 0.25.0 or later.
- Review Docmost’s GitHub advisory and release notes for deployment-specific guidance.
- Limit public share functionality until upgraded if business operations allow.
- Restrict content creation or editing to trusted users where feasible.
- Monitor for suspicious shared page activity or unexpected script behavior.
Validation and detection
- Inventory Docmost instances and record their running versions.
- Confirm whether any instance is >=0.20.0 and <0.25.0.
- Check whether public share pages are enabled or externally reachable.
- Review recent page title changes for unusual or suspicious content.
- After upgrade, confirm version 0.25.0 or later is deployed.
Public sources used
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Conservative CVE-to-ATT&CK context
These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.
ATT&CK lookup starting points
Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.
CWE-79: User-session and phishing behavior lookup
Client-side and session-facing weaknesses should be reviewed alongside initial-access and user-execution behaviors. Open the exact CWE lookup page first, then review the ATT&CK searches from that MITRE weakness context. This is a Glexia lookup hint, not an official ATT&CK mapping.
Open ATT&CK lookupCVE-2026-24045 mapping review
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Open ATT&CK lookup- Severity
- High
- CVSS
- 7.3 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:N
CNA and ADP enrichment extracted from CVE v5
These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.
CVSS vector scores
1 official scoreWe collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:N2.15.2Primary CVE scoreVulnerability scoring details
Base CVSS 3.1 score
7.3HighVector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:N
Source materials
- CVE List V5 sourceCVE List V5
- https://github.com/docmost/docmost/security/advisories/GHSA-h7fp-4f37-29wqCVE reference · x_refsource_CONFIRM
- https://github.com/docmost/docmost/commit/f3f74c591f32f85b8aa9a98ed884a7dd455780f9CVE reference · x_refsource_MISC
- https://github.com/docmost/docmost/releases/tag/v0.25.0CVE reference · x_refsource_MISC
Products and packages named in the record
CWE details
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.