CVE-2025-53890

critical · 9.8

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.

9.8

CVSS

1.2%

EPSS (exploit prob.)

66th

EPSS percentile

2025-07-15

Published

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Weaknesses

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

Query this programmatically:

curl https://evil-db.io/api/v1/cve/CVE-2025-53890