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TI-2022-18761 Aliases CVE-2022-39387GHSA-m7gv-v8xx-v47w

XWiki OIDC Authenticator vulnerable to OpenID login bypass due to improper authentication

Priority MEDIUM 48CWE-287Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
Security bypass
Confidentiality · integrity · availability
High · None · High
Fix status
Fixed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA and GitHub. Impact type from CWE-287.

Summary

XWiki OIDC has various tools to manipulate OpenID Connect protocol in XWiki. Prior to version 1.29.1, even if a wiki has an OpenID provider configured through its xwiki.properties, it is possible to provide a third party provider its details through request parameters. One can then bypass the XWiki authentication altogether by specifying its own provider through the oidc.endpoint.* request parameters (or by using an XWiki-based OpenID provider with oidc.xwikiprovider. With the same approach, one could also provide a specific group mapping through oidc.groups.mapping that would make his user automatically part of the XWikiAdminGroup. This issue has been patched, please upgrade to 1.29.1. There is no workaround, an upgrade of the authenticator is required.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.01191 68th percentileScored 2026-11-07
Fix Fixed oidc (xwiki-contrib): 1.29.1org.xwiki.contrib.oidc:oidc-authenticator (Maven): 1.29.1

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

VendorProductAffected versionsFixed inStatusSource
XWikioidcbefore 1.29.11.29.1Patch availableCNA
—org.xwiki.contrib.oidc:oidc-authenticator (Maven)before 1.29.11.29.1Patch availableGHSA-m7gv-v8xx-v47w
  • oidc VendorXWiki Affected before 1.29.1 Fixed in 1.29.1 Patch available CNA
  • org.xwiki.contrib.oidc:oidc-authenticator (Maven) Vendor— Affected before 1.29.1 Fixed in 1.29.1 Patch available GHSA-m7gv-v8xx-v47w

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:xwiki:openid_connect:*:*:*:*:*:*:*:*before 1.29.1VulnerableXWiki
  • cpe:2.3:a:xwiki:openid_connect:*:*:*:*:*:*:*:* Versions before 1.29.1 Vulnerable ·XWiki

Remediation

  • Fix · CNA oidc (xwiki-contrib) Fixed in 1.29.1
  • Fix · GHSA-m7gv-v8xx-v47w org.xwiki.contrib.oidc:oidc-authenticator (Maven) Fixed in 1.29.1 Advisory →

Timeline

  1. 2026-10-02 Threatist record created from CVE-2022-39387
  2. 2026-10-03 Alias added: GHSA-m7gv-v8xx-v47w

References

Patch 1

Advisory 3

Other 1

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences