Low severity3.5NVD Advisory· Published Nov 25, 2022· Updated Jun 17, 2026
CVE-2022-39338
CVE-2022-39338
Description
user_oidc is an OpenID Connect user backend for Nextcloud. Versions prior to 1.2.1 did not properly validate discovery urls which may lead to a stored cross site scripting attack vector. The impact is limited due to the restrictive CSP that is applied on this endpoint. Additionally this vulnerability has only been shown to be exploitable in the Safari web browser. This issue has been addressed in version 1.2.1. Users are advised to upgrade. Users unable to upgrade should urge their users to avoid using the Safari web browser.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected products
2- nextcloud/security-advisoriesv5Range: < 1.2.1
Patches
Vulnerability mechanics
References
3- github.com/nextcloud/user_oidc/pull/496nvdPatchThird Party Advisory
- github.com/nextcloud/security-advisories/security/advisories/GHSA-5fpw-795h-rg57nvdThird Party Advisory
- hackerone.com/reports/1687410nvdPermissions RequiredThird Party Advisory
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