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CVE PROGRAM SOURCE RECORD4.8 Medium

CVE-2025-31483

Stored XSS in Miniflux Media Proxy due to improper Content-Security-Policy configuration

Description

Miniflux is a feed reader. Due to a weak Content Security Policy on the /proxy/* route, an attacker can bypass the CSP of the media proxy and execute cross-site scripting when opening external images in a new tab/window. To mitigate the vulnerability, the CSP for the media proxy has been changed from default-src 'self' to default-src 'none'; form-action 'none'; sandbox;. This vulnerability is fixed in 2.2.7.

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

miniflux v2

  • < 2.2.7affected

References