{"id":"CVE-2025-31483","aliases":["DEBIAN-CVE-2025-31483","EUVD-2025-9736","GHSA-cq88-842x-2jhp","GO-2025-3591","UBUNTU-CVE-2025-31483","openSUSE-SU-2025:14982-1"],"status":"published","title":"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.","severity":{"version":"4.0","score":4.8,"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","level":"medium","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-10","score":0.00426,"percentile":0.37163,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-79"],"published":"2025-04-03T18:07:32Z","modified":"2026-10-28T02:31:13Z","fixes":[{"ecosystem":"Go","package":"miniflux.app/v2","fixed_in":["2.2.7"],"sources":["ghsa","osv"]},{"ecosystem":"Debian:14","package":"miniflux","fixed_in":["2.2.12-1"],"sources":["osv"]}],"affected":[{"source":"ghsa","ecosystem":"Go","package":"miniflux.app/v2","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.2.7"}]}]},{"source":"osv","ecosystem":"Debian:13","package":"miniflux","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["2.2.10-1","2.2.11-1","2.2.12-1","2.2.13-1","2.2.16-1","2.2.16-2","2.2.19-1","2.2.19-2","2.2.6-1","2.2.6-2","2.3.0-1","2.3.2-1","2.3.3-1"]},{"source":"osv","ecosystem":"Debian:14","package":"miniflux","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.2.12-1"}]}],"versions":["2.2.10-1","2.2.11-1","2.2.6-1","2.2.6-2"]},{"source":"osv","ecosystem":"Go","package":"miniflux.app/v2","ranges":[{"type":"SEMVER","events":[{"introduced":"0"},{"fixed":"2.2.7"}]}]},{"source":"osv","ecosystem":"Go","package":"miniflux.app","ranges":[{"type":"SEMVER","events":[{"introduced":"0"}]}]},{"source":"osv","ecosystem":"Go","package":"miniflux.app/v2","ranges":[{"type":"SEMVER","events":[{"introduced":"0"},{"fixed":"2.2.7"}]}]},{"source":"osv","ecosystem":"Ubuntu:Pro:24.04:LTS","package":"miniflux","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["2.0.51-1","2.0.51-2","2.0.51-2ubuntu0.1","2.0.51-2ubuntu0.2","2.0.51-2ubuntu0.2+esm1","2.0.51-2ubuntu0.3","2.0.51-2ubuntu0.3+esm1","2.0.51-2ubuntu0.3+esm2"]},{"source":"osv","ecosystem":"Ubuntu:25.10","package":"miniflux","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["2.2.6-1","2.2.6-2"]},{"source":"osv","ecosystem":"Ubuntu:26.10","package":"miniflux","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["2.2.16-2","2.3.0-1","2.3.2-1"]},{"source":"osv","ecosystem":"Ubuntu:Pro:26.04:LTS","package":"miniflux","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["2.2.6-2","2.2.13-1","2.2.16-2","2.2.16-2ubuntu0.26.04.1~esm1"]},{"source":"osv","ecosystem":"openSUSE:Tumbleweed","package":"govulncheck-vulndb","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0.0.20250409T170536-1.1"}]}],"bundled":4}],"products":[{"vendor":"miniflux","product":"v2"}],"references":[{"url":"https://github.com/miniflux/v2/security/advisories/GHSA-cq88-842x-2jhp","tags":["x_refsource_CONFIRM","advisory","web","report"]},{"url":"https://github.com/miniflux/v2/commit/cb695e653a08af4cabcb277c271ce74bd0c746e6","tags":["x_refsource_MISC","fix","web","report"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2025-31483","tags":["advisory"]},{"url":"https://github.com/advisories/GHSA-cq88-842x-2jhp"},{"url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/31xxx/CVE-2025-31483.json","tags":["advisory"]},{"url":"https://security-tracker.debian.org/tracker/CVE-2025-31483","tags":["advisory"]},{"url":"https://github.com/miniflux/v2","tags":["package"]},{"url":"https://ubuntu.com/security/CVE-2025-31483","tags":["report"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2025-31483","tags":["report"]},{"url":"","tags":["advisory"]},{"url":"https://www.suse.com/security/cve/CVE-2025-31483","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2025-31489","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2025-32024","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2025-32025","tags":["web"]}],"sources":{"cve":[{"id":"CVE-2025-31483","title":"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.","status":"published","published":"2025-04-03T18:07:32.241Z","modified":"2025-04-03T18:49:45.617Z","cvss":[{"version":"4.0","score":4.8,"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","level":"medium","assessor":"cna"}],"cwes":["CWE-79"],"updated_at":"2026-11-02T14:32:44.424933Z"}],"euvd":[{"id":"EUVD-2025-9736","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.","status":"published","published":"2025-04-03T18:07:32Z","modified":"2025-04-03T18:49:45Z","cvss":[{"version":"4.0","score":4.8,"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","level":"medium"}],"updated_at":"2026-11-02T20:52:43.340305Z"}],"ghsa":[{"id":"GHSA-cq88-842x-2jhp","title":"Miniflux Media Proxy vulnerable to Stored Cross-site Scripting due to improper Content-Security-Policy configuration","description":"## Summary\n\nDue 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.\n\n## Impact\n\nA malicious feed added to Miniflux can execute arbitrary JavaScript in the user's browser when opening external resources, such as proxified images, in a new tab or window.\n\n## Mitigation\n\nThe CSP for the media proxy has been changed from `default-src 'self'` to `default-src 'none'; form-action 'none'; sandbox;`.\n\nUpgrade to Miniflux \u003e= 2.2.7\n\n## Credit\n[RyotaK](https://ryotak.net) (GMO Flatt Security Inc.) with [takumi-san.ai](https://takumi-san.ai)","status":"published","published":"2025-04-04T14:09:40Z","modified":"2025-04-07T19:52:04Z","cvss":[{"version":"4.0","score":4.8,"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","level":"medium"}],"cwes":["CWE-79"],"updated_at":"2026-11-02T14:38:38.344711Z"}],"nvd":[{"id":"CVE-2025-31483","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.","status":"published","published":"2025-04-03T18:15:47.27Z","modified":"2026-06-17T09:10:28.857Z","cvss":[{"version":"4.0","score":4.8,"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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X","level":"medium","assessor":"secondary"}],"cwes":["CWE-79"],"updated_at":"2026-11-02T14:10:58.094557Z"}],"osv":[{"id":"CVE-2025-31483","title":"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.","status":"published","published":"2025-04-03T18:07:32.241Z","modified":"2026-10-28T02:31:13.892199499Z","cvss":[{"version":"4.0","score":4.8,"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","level":"medium"}],"cwes":["CWE-79"],"updated_at":"2026-11-02T15:44:48.02508Z"},{"id":"DEBIAN-CVE-2025-31483","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.","status":"published","published":"2025-04-03T18:15:47.27Z","modified":"2026-10-12T20:00:06.536439812Z","cvss":[{"version":"4.0","score":4.8,"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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X","level":"medium"}],"updated_at":"2026-11-02T15:45:45.870237Z"},{"id":"GHSA-cq88-842x-2jhp","title":"Miniflux Media Proxy vulnerable to Stored Cross-site Scripting due to improper Content-Security-Policy configuration","description":"## Summary\n\nDue 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.\n\n## Impact\n\nA malicious feed added to Miniflux can execute arbitrary JavaScript in the user's browser when opening external resources, such as proxified images, in a new tab or window.\n\n## Mitigation\n\nThe CSP for the media proxy has been changed from `default-src 'self'` to `default-src 'none'; form-action 'none'; sandbox;`.\n\nUpgrade to Miniflux \u003e= 2.2.7\n\n## Credit\n[RyotaK](https://ryotak.net) (GMO Flatt Security Inc.) with [takumi-san.ai](https://takumi-san.ai)","status":"published","published":"2025-04-04T14:09:40Z","modified":"2025-04-09T17:42:02.482719Z","cvss":[{"version":"4.0","score":4.8,"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","level":"medium"}],"cwes":["CWE-79"],"updated_at":"2026-11-02T15:46:45.28161Z"},{"id":"UBUNTU-CVE-2025-31483","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.","status":"published","published":"2025-04-03T18:15:00Z","modified":"2026-10-17T12:56:50.083495835Z","cvss":[{"version":"4.0","score":4.8,"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","level":"medium"}],"updated_at":"2026-11-02T16:55:28.829873Z"},{"id":"GO-2025-3591","title":"Miniflux Media Proxy vulnerable to Stored Cross-site Scripting due to improper Content-Security-Policy configuration in miniflux.app","description":"Miniflux Media Proxy vulnerable to Stored Cross-site Scripting due to improper Content-Security-Policy configuration in miniflux.app","status":"published","published":"2025-04-09T17:05:36Z","modified":"2026-03-03T04:56:28.741222Z","updated_at":"2026-11-02T15:47:01.728182Z"},{"id":"openSUSE-SU-2025:14982-1","title":"govulncheck-vulndb-0.0.20250409T170536-1.1 on GA media","description":"These are all security issues fixed in the govulncheck-vulndb-0.0.20250409T170536-1.1 package on the GA media of openSUSE Tumbleweed.","status":"published","published":"2025-04-10T00:00:00Z","modified":"2026-02-04T04:27:14.937598Z","updated_at":"2026-11-02T16:58:37.399567Z"}]}}