CVE-2023-26478

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.

• CWE-749

• https://github.com/xwiki/xwiki-platform/commit/3c73c59e39b6436b1074d8834cf276916010014dPatch
• https://github.com/xwiki/xwiki-platform/security/advisories/GHSA-8692-g6g9-gm5pVendor Advisory
• https://jira.xwiki.org/browse/XWIKI-20180Exploit, Issue Tracking, Vendor Advisory
• https://github.com/xwiki/xwiki-platform/commit/3c73c59e39b6436b1074d8834cf276916010014dPatch
• https://github.com/xwiki/xwiki-platform/security/advisories/GHSA-8692-g6g9-gm5pVendor Advisory
• https://jira.xwiki.org/browse/XWIKI-20180Exploit, Issue Tracking, Vendor Advisory

Published

Mar 2, 2023

Last Modified

Jun 17, 2026

Status

Modified

• How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
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