org.xwiki.platform:xwiki-platform-store-filesystem-oldcore has Exposed Dangerous Method or Function
Key facts
- Attack vector
- Network
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- High · High · None
- Fix status
- Fixed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA and GitHub.
Summary
XWiki Platform is a generic wiki platform. Starting in version 14.3-rc-1, `org.xwiki.store.script.TemporaryAttachmentsScriptService#uploadTemporaryAttachment` returns an instance of `com.xpn.xwiki.doc.XWikiAttachment`. This class is not supported to be exposed to users without the `programing` right. `com.xpn.xwiki.api.Attachment` should be used instead and takes case of checking the user's rights before performing dangerous operations. This has been patched in versions 14.9-rc-1 and 14.4.6. There are no known workarounds for this issue.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- 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 | 14.3-rc-1 to before 14.4.6; 14.5 to before 14.9-rc-1 | 14.4.6, 14.9-rc-1 | Patch available | CNA |
| — | org.xwiki.platform:xwiki-platform-store-filesystem-oldcore (Maven) | 14.3-rc-1 to before 14.4.6 | 14.4.6 | Patch available | GHSA-8692-g6g9-gm5p |
| — | org.xwiki.platform:xwiki-platform-store-filesystem-oldcore (Maven) | 14.5 to before 14.9-rc-1 | 14.9-rc-1 | Patch available | GHSA-8692-g6g9-gm5p |
- xwiki-platform VendorXWiki Affected 14.3-rc-1 to before 14.4.6; 14.5 to before 14.9-rc-1 Fixed in 14.4.6, 14.9-rc-1 Patch available CNA
- org.xwiki.platform:xwiki-platform-store-filesystem-oldcore (Maven) Vendor— Affected 14.3-rc-1 to before 14.4.6 Fixed in 14.4.6 Patch available GHSA-8692-g6g9-gm5p
- org.xwiki.platform:xwiki-platform-store-filesystem-oldcore (Maven) Vendor— Affected 14.5 to before 14.9-rc-1 Fixed in 14.9-rc-1 Patch available GHSA-8692-g6g9-gm5p
Remediation
- Fix · CNA xwiki-platform (xwiki) Fixed in 14.4.6, 14.9-rc-1
- Fix · GHSA-8692-g6g9-gm5p org.xwiki.platform:xwiki-platform-store-filesystem-oldcore (Maven) Fixed in 14.4.6 Advisory →
- Fix · GHSA-8692-g6g9-gm5p org.xwiki.platform:xwiki-platform-store-filesystem-oldcore (Maven) Fixed in 14.9-rc-1 Advisory →
Timeline
- 2026-10-02 Threatist record created from CVE-2023-26478
- 2026-10-03 Alias added: GHSA-8692-g6g9-gm5p
References
Advisory 2
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-2023-26478 · CVE Program
- CVE-2023-26478 · NVD
- FIRST EPSS
- GHSA-8692-g6g9-gm5p · GitHub Advisory Database · CC BY 4.0
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