XWiki Denial of Service attack through attachments
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Denial of service
- Confidentiality · integrity · availability
- None · None · High
- Fix status
- Fixed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA and GitHub. Impact type from CWE-400.
Summary
XWiki Platform is a generic wiki platform offering runtime services for applications built on top of it. A user able to attach a file to a page can post a malformed TAR file by manipulating file modification times headers, which when parsed by Tika, could cause a denial of service issue via CPU consumption. This vulnerability has been patched in XWiki 14.10.18, 15.5.3 and 15.8 RC1.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- Yes
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| XWiki | xwiki-platform | 14.10 to before 14.10.18; 15.0-rc-1 to before 15.5.3; 15.6-rc-1 to before 15.8-rc-1 | 14.10.18, 15.5.3, 15.8-rc-1 | Patch available | CNA |
| — | org.xwiki.platform:xwiki-platform-distribution-war (Maven) | 14.10 to before 14.10.18 | 14.10.18 | Patch available | GHSA-8959-rfxh-r4j4 |
| — | org.xwiki.platform:xwiki-platform-distribution-war (Maven) | 15.0-rc-1 to before 15.5.3 | 15.5.3 | Patch available | GHSA-8959-rfxh-r4j4 |
| — | org.xwiki.platform:xwiki-platform-distribution-war (Maven) | 15.6-rc-1 to before 15.8-rc-1 | 15.8-rc-1 | Patch available | GHSA-8959-rfxh-r4j4 |
- xwiki-platform VendorXWiki Affected 14.10 to before 14.10.18; 15.0-rc-1 to before 15.5.3; 15.6-rc-1 to before 15.8-rc-1 Fixed in 14.10.18, 15.5.3, 15.8-rc-1 Patch available CNA
- org.xwiki.platform:xwiki-platform-distribution-war (Maven) Vendor— Affected 14.10 to before 14.10.18 Fixed in 14.10.18 Patch available GHSA-8959-rfxh-r4j4
- org.xwiki.platform:xwiki-platform-distribution-war (Maven) Vendor— Affected 15.0-rc-1 to before 15.5.3 Fixed in 15.5.3 Patch available GHSA-8959-rfxh-r4j4
- org.xwiki.platform:xwiki-platform-distribution-war (Maven) Vendor— Affected 15.6-rc-1 to before 15.8-rc-1 Fixed in 15.8-rc-1 Patch available GHSA-8959-rfxh-r4j4
CPE configurations NVD · 1
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:xwiki:xwiki:*:*:*:*:*:*:*:* | 14.10 to before 14.10.18; 15.5 to before 15.5.3; 15.6 to before 15.8 | Vulnerable | XWiki |
- cpe:2.3:a:xwiki:xwiki:*:*:*:*:*:*:*:* Versions 14.10 to before 14.10.18; 15.5 to before 15.5.3; 15.6 to before 15.8 Vulnerable ·XWiki
Remediation
- Fix · CNA xwiki-platform (xwiki) Fixed in 14.10.18, 15.5.3, 15.8-rc-1
- Fix · GHSA-8959-rfxh-r4j4 org.xwiki.platform:xwiki-platform-distribution-war (Maven) Fixed in 14.10.18 Advisory →
- Fix · GHSA-8959-rfxh-r4j4 org.xwiki.platform:xwiki-platform-distribution-war (Maven) Fixed in 15.5.3 Advisory →
- Fix · GHSA-8959-rfxh-r4j4 org.xwiki.platform:xwiki-platform-distribution-war (Maven) Fixed in 15.8-rc-1 Advisory →
Timeline
- 2026-10-02 Threatist record created from CVE-2024-21651
- 2026-10-03 Alias added: GHSA-8959-rfxh-r4j4
- 2026-10-25 EPSS moved to the 50th–90th percentile
References
Advisory 3
More Xwiki vulnerabilities
- TI-2025-18595 Remote code execution as guest via SolrSearchMacros request in xwiki KEVCVSS 3.1CRITICAL 9.8
- TI-2023-25214 Remote code execution through the section parameter in Administration as guest in XWiki Platform CVSS 3.1CRITICAL 10.0
- TI-2025-23500 XWiki Platform vulnerable to SQL injection through getdeleteddocuments.vm template sort parameter CVSS 4.0CRITICAL 9.3
- TI-2025-23979 org.xwiki.platform:xwiki-platform-rest-server allows SQL injection in query endpoint of REST API CVSS 4.0CRITICAL 9.3
- TI-2024-20829 XWiki Platform: Remote code execution from account via SearchSuggestSourceSheet CVSS 3.1CRITICAL 10.0
- TI-2024-14375 XWiki Remote Code Execution vulnerability via user registration CVSS 3.1CRITICAL 10.0
Sources
- CVE-2024-21651 · CVE Program
- CVE-2024-21651 · NVD
- FIRST EPSS
- GHSA-8959-rfxh-r4j4 · GitHub Advisory Database · CC BY 4.0
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