CVE-2026-108580: Phoenixthrush Aniworld Downloader

Medium severity, CVSS 6.5.

AniWorld Downloader before 5.3.0 contains an improper restriction of authentication attempts vulnerability in the WebUI /login POST handler that allows unauthenticated attackers to guess passwords without throttling. Attackers can enumerate usernames through verify_user response timing and brute-force passwords on exposed WebUI instances to take over accounts.

Affected products

• Phoenixthrush Aniworld Downloader: before 5.3.0 (fixed in 5.3.0)

Published 2026-10-10. Last modified 2026-10-10.