{"cve":"CVE-2025-31483","nvd":{"published":"2025-04-03T18:15:47.270","modified":"2026-06-17T09:10:28.857","status":"Deferred","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.","cvss_v4":{"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:A/VC:L/VI:L/VA:N/SC:L/SI:L/SA:N","score":4.8},"cvss_v3":null,"cwes":["CWE-79"],"references":["https://github.com/miniflux/v2/commit/cb695e653a08af4cabcb277c271ce74bd0c746e6","https://github.com/miniflux/v2/security/advisories/GHSA-cq88-842x-2jhp"],"products":[],"source":"nvd","synced_at":"2026-10-19T22:00:57.946988208+00:00"},"epss":{"cve":"CVE-2025-31483","score":0.00426,"percentile":0.3688,"date":"2026-10-31"},"kev":null,"osv":[{"id":"GHSA-cq88-842x-2jhp","url":"https://osv.dev/vulnerability/GHSA-cq88-842x-2jhp","summary":"Miniflux Media Proxy vulnerable to Stored Cross-site Scripting due to improper Content-Security-Policy configuration","modified":"2025-04-09T17:42:02.482719Z","packages":[{"ecosystem":"Go","name":"miniflux.app/v2","purl":"pkg:golang/miniflux.app/v2","ranges":["<2.2.7"],"fixed":["2.2.7"]}]},{"id":"GO-2025-3591","url":"https://osv.dev/vulnerability/GO-2025-3591","summary":"Miniflux Media Proxy vulnerable to Stored Cross-site Scripting due to improper Content-Security-Policy configuration in miniflux.app","modified":"2026-03-03T04:56:28.741222Z","packages":[{"ecosystem":"Go","name":"miniflux.app","purl":"pkg:golang/miniflux.app","ranges":["all versions"],"fixed":[]},{"ecosystem":"Go","name":"miniflux.app/v2","purl":"pkg:golang/miniflux.app/v2","ranges":["<2.2.7"],"fixed":["2.2.7"]}]}],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}