CVEvulnerability

CVE-2022-39338

5.4 MEDIUM Published 2022-11-25 Modified 2026-06-17 Official page ↗
Status
Modified
Published
2022-11-25
Last modified
2026-06-17
Assigner
[email protected]
CVSS 3.1 ([email protected])
3.5 LOW — CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:L/I:L/A:N
CVSS 3.1 ([email protected])
5.4 MEDIUM — CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
Weaknesses
CWE-20, CWE-79

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.

Affected configurations

• nextcloud openid connect user backend (< 1.2.1)

Related

Weakness · CWE (2)

  • CWE-20 Improper Input Validation weakness
  • CWE-79 Improper Neutralization of Input During Web Page Generation weakness

References