{"cve":"CVE-2025-53890","nvd":{"published":"2025-07-15T00:15:24.150","modified":"2026-06-17T09:39:05.117","status":"Deferred","description":"pyload is an open-source Download Manager written in pure Python. An unsafe JavaScript evaluation vulnerability in pyLoad’s CAPTCHA processing code allows unauthenticated remote attackers to execute arbitrary code in the client browser and potentially the backend server. Exploitation requires no user interaction or authentication and can result in session hijacking, credential theft, and full system remote code execution. Commit 909e5c97885237530d1264cfceb5555870eb9546, the patch for the issue, is included in version 0.5.0b3.dev89.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","score":9.8},"cwes":["CWE-94"],"references":["https://github.com/pyload/pyload/commit/909e5c97885237530d1264cfceb5555870eb9546","https://github.com/pyload/pyload/pull/4586","https://github.com/pyload/pyload/security/advisories/GHSA-8w3f-4r8f-pf53","https://github.com/pyload/pyload/security/advisories/GHSA-8w3f-4r8f-pf53"],"products":[],"source":"nvd","synced_at":"2026-10-19T22:04:28.436527499+00:00"},"epss":{"cve":"CVE-2025-53890","score":0.01298,"percentile":0.70402,"date":"2026-11-01"},"kev":null,"osv":[{"id":"GHSA-8w3f-4r8f-pf53","url":"https://osv.dev/vulnerability/GHSA-8w3f-4r8f-pf53","summary":"pyLoad vulnerable to XSS through insecure CAPTCHA ","modified":"2026-09-10T03:50:25.994941188Z","packages":[{"ecosystem":"PyPI","name":"pyload-ng","purl":"pkg:pypi/pyload-ng","ranges":["<0.20"],"fixed":["0.20"]}]},{"id":"PYSEC-2026-496","url":"https://osv.dev/vulnerability/PYSEC-2026-496","summary":"pyLoad vulnerable to XSS through insecure CAPTCHA ","modified":"2026-07-09T17:45:05.405847274Z","packages":[{"ecosystem":"PyPI","name":"pyload-ng","purl":"pkg:pypi/pyload-ng","ranges":["<0.20"],"fixed":["0.20"]}]}],"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."]}