{"id":"CVE-2025-49594","aliases":["EUVD-2025-32164","GHSA-f2hf-pfrj-vrm7"],"status":"published","title":"XWiki OIDC Authenticator vulnerable to creation of token for any user with just `view` right","description":"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.","severity":{"version":"4.0","score":9.2,"vector":"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","level":"critical","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-11","score":0.00442,"percentile":0.38826,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-285"],"published":"2025-10-06T14:48:43Z","modified":"2026-10-28T11:01:53Z","fixes":[{"ecosystem":"Maven","package":"org.xwiki.contrib.oidc:oidc-authenticator","fixed_in":["2.18.2"],"sources":["ghsa","osv"]}],"affected":[{"source":"ghsa","ecosystem":"Maven","package":"org.xwiki.contrib.oidc:oidc-authenticator","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"2.17.1"},{"fixed":"2.18.2"}]}]},{"source":"osv","ecosystem":"Maven","package":"org.xwiki.contrib.oidc:oidc-authenticator","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"2.17.1"},{"fixed":"2.18.2"}]}]}],"products":[{"vendor":"xwiki-contrib","product":"oidc"}],"references":[{"url":"https://github.com/xwiki-contrib/oidc/security/advisories/GHSA-f2hf-pfrj-vrm7","tags":["x_refsource_CONFIRM","advisory","web"]},{"url":"https://github.com/xwiki-contrib/oidc/commit/d90d717172283aaa96bb5bb44e357f910ae64adb","tags":["x_refsource_MISC","fix","web"]},{"url":"https://jira.xwiki.org/browse/OIDC-240","tags":["x_refsource_MISC","web"]},{"url":"https://www.vicarius.io/vsociety/posts/cve-2025-49594-detect-xwiki-vulnerability","tags":["web"]},{"url":"https://www.vicarius.io/vsociety/posts/cve-2025-49594-mitigate-xwiki-vulnerability","tags":["web"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2025-49594","tags":["advisory"]},{"url":"https://github.com/advisories/GHSA-f2hf-pfrj-vrm7"},{"url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/49xxx/CVE-2025-49594.json","tags":["advisory"]},{"url":"https://github.com/xwiki-contrib/oidc","tags":["package"]}],"sources":{"cve":[{"id":"CVE-2025-49594","title":"XWiki OIDC Authenticator vulnerable to creation of token for any user with just `view` right","description":"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.","status":"published","published":"2025-10-06T14:48:43.609Z","modified":"2025-10-23T13:16:52.688Z","cvss":[{"version":"4.0","score":9.2,"vector":"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","level":"critical","assessor":"cna"}],"cwes":["CWE-285"],"updated_at":"2026-11-02T14:32:24.825718Z"}],"euvd":[{"id":"EUVD-2025-32164","description":"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.","status":"published","published":"2025-10-06T14:48:43Z","modified":"2025-10-23T13:16:52Z","cvss":[{"version":"4.0","score":9.2,"vector":"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","level":"critical"}],"updated_at":"2026-11-02T19:49:38.250854Z"}],"ghsa":[{"id":"GHSA-f2hf-pfrj-vrm7","title":"XWiki OIDC Authenticator: Users with \"view\" access can create tokens for any users they can view","description":"### Impact\n\nAnyone 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).\n\n### Patches\n\nVersion 2.18.2.\n\n### Workarounds\n\nThe only workaround is to disable token access.\n\n### References\n\n* https://jira.xwiki.org/browse/OIDC-240\n* https://github.com/xwiki-contrib/oidc/commit/d90d717172283aaa96bb5bb44e357f910ae64adb\n\n### For more information\n\nIf you have any questions or comments about this advisory:\n* Open an issue in [Jira XWiki.org](https://jira.xwiki.org/)\n* Email us at [Security Mailing List](mailto:security@xwiki.org)","status":"published","published":"2025-10-06T17:58:22Z","modified":"2025-10-23T17:43:49Z","cvss":[{"version":"4.0","score":9.2,"vector":"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","level":"critical"}],"cwes":["CWE-285"],"updated_at":"2026-11-02T14:39:03.380616Z"}],"nvd":[{"id":"CVE-2025-49594","description":"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.","status":"published","published":"2025-10-06T15:16:04.09Z","modified":"2026-10-09T10:10:00.193Z","cvss":[{"version":"4.0","score":9.2,"vector":"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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X","level":"critical","assessor":"secondary"}],"cwes":["CWE-285"],"updated_at":"2026-11-02T14:11:35.93863Z"}],"osv":[{"id":"CVE-2025-49594","title":"XWiki OIDC Authenticator vulnerable to creation of token for any user with just `view` right","description":"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.","status":"published","published":"2025-10-06T14:48:43.609Z","modified":"2026-10-28T11:01:53.569267813Z","cvss":[{"version":"4.0","score":9.2,"vector":"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","level":"critical"}],"cwes":["CWE-285"],"updated_at":"2026-11-02T15:44:50.037003Z"},{"id":"GHSA-f2hf-pfrj-vrm7","title":"XWiki OIDC Authenticator: Users with \"view\" access can create tokens for any users they can view","description":"### Impact\n\nAnyone 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).\n\n### Patches\n\nVersion 2.18.2.\n\n### Workarounds\n\nThe only workaround is to disable token access.\n\n### References\n\n* https://jira.xwiki.org/browse/OIDC-240\n* https://github.com/xwiki-contrib/oidc/commit/d90d717172283aaa96bb5bb44e357f910ae64adb\n\n### For more information\n\nIf you have any questions or comments about this advisory:\n* Open an issue in [Jira XWiki.org](https://jira.xwiki.org/)\n* Email us at [Security Mailing List](mailto:security@xwiki.org)","status":"published","published":"2025-10-06T17:58:22Z","modified":"2025-10-23T17:43:47Z","cvss":[{"version":"4.0","score":9.2,"vector":"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","level":"critical"}],"cwes":["CWE-285"],"updated_at":"2026-11-02T15:46:45.639885Z"}]}}