Cross-site Scripting (XSS) Affecting nextcloud-server-32 package, versions <32.0.12-r4


Severity

Recommended
0.0
high
0
10

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Threat Intelligence

EPSS
0.17% (7th percentile)

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  • Snyk IDSNYK-WOLFILATEST-NEXTCLOUDSERVER32-18299442
  • published24 Jul 2026
  • disclosed23 Jul 2026

Introduced: 23 Jul 2026

NewCVE-2026-65898  (opens in a new tab)
CWE-79  (opens in a new tab)

How to fix?

Upgrade Wolfi nextcloud-server-32 to version 32.0.12-r4 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream nextcloud-server-32 package and not the nextcloud-server-32 package as distributed by Wolfi. See How to fix? for Wolfi relevant fixed versions and status.

DOMPurify before 3.4.11 fails to clone the ALLOWED_ATTR allowlist when setConfig() is used with an uponSanitizeAttribute hook, allowing the hook to permanently mutate the shared allowlist. Attackers can register a hook that conditionally allows dangerous attributes like onerror for trusted elements, then submit untrusted content that inherits the polluted allowlist and executes event handlers as stored XSS.

CVSS Base Scores

version 3.1