CVE-2022-39338

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Summary

CVECVE-2022-39338
StatePUBLIC
Assigner[email protected]
Source PriorityCVE Program / NVD first with legacy fallback
Published2022-11-25 19:15:00 UTC
Updated2022-12-01 20:43:00 UTC
Descriptionuser_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.

Risk And Classification

Problem Types: CWE-79 | CWE-20

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Application Nextcloud Openid Connect User Backend All All All All

References

ReferenceSourceLinkTags
Stored XSS via Authorization Endpoint - Safari-Only · Advisory · nextcloud/security-advisories · GitHub CONFIRM github.com
HackerOne MISC hackerone.com
Check if authorization_endpoint is valid in code flow by julien-nc · Pull Request #496 · nextcloud/user_oidc · GitHub MISC github.com
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

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