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CVE-2026-33137

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.
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:ad27b21005d0e2953ea858e03403f6304e461c8c6e0c1e65151c5f53b1a91ebc
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
0

Affected products and versions

1 source assertion
{"product":"xwiki-platform","vendor":"xwiki","versions":[{"status":"affected","version":">= 15.10.6, < 16.10.17"},{"status":"affected","version":">= 17.0.0-rc-1, < 17.4.9"},{"status":"affected","version":">= 17.5.0, < 17.10.3"},{"status":"affected","version":">= 18.0.0-rc-1, < 18.1.0-rc-1"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:4a76842f62e8b418dc2adfa9b1ca3e3d868e3413fb216363d85f0fdb1cc46ce2 · sha256:21a0e5b2ebef3dc8… · /containers/cna/affected/0

Provider-owned CVSS observations

1 source assertion
{"metric":{"attackComplexity":"LOW","attackRequirements":"NONE","attackVector":"NETWORK","baseScore":9.3,"baseSeverity":"CRITICAL","privilegesRequired":"NONE","subAvailabilityImpact":"NONE","subConfidentialityImpact":"NONE","subIntegrityImpact":"NONE","userInteraction":"NONE","vectorString":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N","version":"4.0","vulnAvailabilityImpact":"HIGH","vulnConfidentialityImpact":"HIGH","vulnIntegrityImpact":"HIGH"},"metric_type":"cvssV4_0"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:4a76842f62e8b418dc2adfa9b1ca3e3d868e3413fb216363d85f0fdb1cc46ce2 · sha256:21a0e5b2ebef3dc8… · /containers/cna/metrics/0/cvssV4_0

CWE assertions

1 source assertion
{"cweId":"CWE-862","description":"CWE-862: Missing Authorization","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:4a76842f62e8b418dc2adfa9b1ca3e3d868e3413fb216363d85f0fdb1cc46ce2 · sha256:21a0e5b2ebef3dc8… · /containers/cna/problemTypes/0/descriptions/0

Source references

3 source assertions
{"name":"https://github.com/xwiki/xwiki-platform/commit/4b7b95b79256374d487e9ece1dc48f527966990f","tags":["x_refsource_MISC"],"url":"https://github.com/xwiki/xwiki-platform/commit/4b7b95b79256374d487e9ece1dc48f527966990f"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:4a76842f62e8b418dc2adfa9b1ca3e3d868e3413fb216363d85f0fdb1cc46ce2 · sha256:21a0e5b2ebef3dc8… · /containers/cna/references/1
{"name":"https://github.com/xwiki/xwiki-platform/security/advisories/GHSA-qrvh-r3f2-9h4r","tags":["x_refsource_CONFIRM"],"url":"https://github.com/xwiki/xwiki-platform/security/advisories/GHSA-qrvh-r3f2-9h4r"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:4a76842f62e8b418dc2adfa9b1ca3e3d868e3413fb216363d85f0fdb1cc46ce2 · sha256:21a0e5b2ebef3dc8… · /containers/cna/references/0
{"name":"https://jira.xwiki.org/browse/XWIKI-23953","tags":["x_refsource_MISC"],"url":"https://jira.xwiki.org/browse/XWIKI-23953"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:4a76842f62e8b418dc2adfa9b1ca3e3d868e3413fb216363d85f0fdb1cc46ce2 · sha256:21a0e5b2ebef3dc8… · /containers/cna/references/2

Attribution and limitations

  • CVE Program CVEList V5: Reproduce the MITRE copyright designation and CVE license in copies. Source →

Provider severity values are preserved separately. Baitaphish does not convert them into a risk rating, infer affected products, or treat EPSS as observed exploitation.

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