---
title: "CVE-2025-49594: XWiki OIDC Authenticator: Users with \"view\" access can create tokens for any users they can view"
url: https://erroneo.us/security/cve/CVE-2025-49594/
description: "CVE-2025-49594 (org.xwiki.contrib.oidc:oidc-authenticator (Maven)): XWiki OIDC has various tools to manipulate OpenID Connect protocol in XWiki. Starting in…"
type: vulnerability-record
section: "Security Digest"
date_published: 2025-10-06
date_modified: 2025-10-23
publisher: erroneo.us
author: erroneo.us Security Desk
cve: "CVE-2025-49594"
kev: false
cvss: 9.2
epss: 0.00442
license: All rights reserved. Quote with attribution and a link.
---

# CVE-2025-49594: XWiki OIDC Authenticator: Users with "view" access can create tokens for any users they can view

**Signal:** Critical and remotely reachable. No known exploitation yet, but it is network-reachable without credentials. (Computed from CISA KEV, EPSS and CVSS; not an editorial verdict.)

## Should you act?

- No confirmed exploitation. It is not in CISA’s KEV catalog and CISA’s SSVC assessment records no known exploitation. That can change quickly after a public write-up; re-check if you are affected.
- EPSS 0.4% , percentile 37: FIRST’s model estimates a 0.4% chance of exploitation activity in the next 30 days, higher than 37% of all scored CVEs (low). EPSS is a probability, not a verdict.
- Remotely reachable with no login and no user interaction. If the vulnerable service is exposed to the internet, prioritize it.
- Only applies if your dependency tree includes org.xwiki.contrib.oidc:oidc-authenticator (Maven) >= 2.17.1, < 2.18.2, fixed in 2.18.2 . Check your lockfile, including transitive dependencies.

## What it is

XWiki OIDC has various tools to manipulate OpenID Connect protocol in XWiki. Starting in version 2.17.1 and prior to version 2.18.2, anyone with VIEW access to a user profile can create a token for that user. If that XWiki instance is configured to allow token authentication, it allows authentication with any user (since users are very commonly viewable, at least to other registered users). Version 2.18.2 contains a patch. As a workaround, disable token access.

## Affected packages

- Maven `org.xwiki.contrib.oidc:oidc-authenticator` >= 2.17.1, < 2.18.2 → fixed: 2.18.2

## Affected products (CVE record)

- xwiki-contrib oidc: >= 2.17.1, < 2.18.2

## Severity

- GitHub_M CVSS 4.0: 9.2 `CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N`
- GitHub CVSS 4.0: 9.2 `CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N`

## Exploitation

- CISA KEV: not listed (no confirmed in-the-wild exploitation known to CISA).
- CISA SSVC assessment: exploitation none , automatable yes , technical impact total .
- FIRST EPSS (model of 2026-10-21): 0.44% probability of exploitation activity in the next 30 days; percentile 37.

## Sources

- [GitHub Advisory GHSA-f2hf-pfrj-vrm7](https://github.com/advisories/GHSA-f2hf-pfrj-vrm7)
- [CVE.org record CVE-2025-49594](https://www.cve.org/CVERecord?id=CVE-2025-49594)
- [NVD entry CVE-2025-49594](https://nvd.nist.gov/vuln/detail/CVE-2025-49594)
- [github.com](https://github.com/xwiki-contrib/oidc/security/advisories/GHSA-f2hf-pfrj-vrm7)
- [github.com](https://github.com/xwiki-contrib/oidc/commit/d90d717172283aaa96bb5bb44e357f910ae64adb)
- [jira.xwiki.org](https://jira.xwiki.org/browse/OIDC-240)
- [vicarius.io](https://www.vicarius.io/vsociety/posts/cve-2025-49594-detect-xwiki-vulnerability)
- [vicarius.io](https://www.vicarius.io/vsociety/posts/cve-2025-49594-mitigate-xwiki-vulnerability)

---
Source page: https://erroneo.us/security/cve/CVE-2025-49594/ · Security Digest: https://erroneo.us/security/ · More: https://erroneo.us/llms.txt