Critical severityNVD Advisory· Published May 20, 2026· Updated May 26, 2026
CVE-2026-33137
CVE-2026-33137
Description
XWiki Platform is a generic wiki platform offering runtime services for applications built on top of it. XWiki Platform is a generic wiki platform. In versions starting with 15.10.6 and prior to 18.1.0-rc-1, 17.10.3, 17.4.9, and 16.10.17, the POST /wikis/{wikiName} API executes a XAR import without performing any authentication or authorization checks, allowing an unauthenticated attacker to create or update documents in the target wiki. This vulnerability has been patched in XWiki 16.10.17, 17.4.9, 17.10.3, 18.0.1 and 18.1.0-rc-1.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected packages
Versions sourced from the GitHub Security Advisory.
| Package | Affected versions | Patched versions |
|---|---|---|
org.xwiki.platform:xwiki-platform-rest-serverMaven | >= 15.10.6, < 16.10.17 | 16.10.17 |
org.xwiki.platform:xwiki-platform-rest-serverMaven | >= 17.0.0-rc-1, < 17.4.9 | 17.4.9 |
org.xwiki.platform:xwiki-platform-rest-serverMaven | >= 17.5.0, < 17.10.3 | 17.10.3 |
org.xwiki.platform:xwiki-platform-rest-serverMaven | >= 18.0.0-rc-1, < 18.1.0-rc-1 | 18.1.0-rc-1 |
Affected products
2(expand)+ 1 more
- (no CPE)
- (no CPE)range: <16.10.17 | <17.4.9 | <17.10.3 | <18.0.1
Patches
Vulnerability mechanics
References
5- github.com/advisories/GHSA-qrvh-r3f2-9h4rghsaADVISORY
- nvd.nist.gov/vuln/detail/CVE-2026-33137ghsaADVISORY
- github.com/xwiki/xwiki-platform/commit/4b7b95b79256374d487e9ece1dc48f527966990fnvdWEB
- github.com/xwiki/xwiki-platform/security/advisories/GHSA-qrvh-r3f2-9h4rnvdWEB
- jira.xwiki.org/browse/XWIKI-23953nvdWEB
News mentions
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