{"id":"CVE-2026-108580","title":"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","summary":"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 enumer…","severity":"medium","cvss":6.5,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N","cwe":["CWE-307"],"published":"2026-10-10","updated":"2026-10-10","sourceUpdated":"2026-10-10T16:16:31.240","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-108580","references":[{"url":"https://github.com/phoenixthrush/AniWorld-Downloader/blob/bb13599d17937fdb4df2df699024bc233f0656f2/src/aniworld/web/auth.py#L239-L256","label":"disclosure@vulncheck.com"},{"url":"https://github.com/phoenixthrush/AniWorld-Downloader/commit/3c070bd10665377308a3092e11933681c18a5fd1","label":"disclosure@vulncheck.com"},{"url":"https://github.com/phoenixthrush/AniWorld-Downloader/issues/334","label":"disclosure@vulncheck.com"},{"url":"https://github.com/phoenixthrush/AniWorld-Downloader/releases/tag/v.5.3.0","label":"disclosure@vulncheck.com"},{"url":"https://hackmd.io/@haind/aniworld-login-brute-force","label":"disclosure@vulncheck.com"},{"url":"https://www.vulncheck.com/advisories/aniworld-downloader-before-5.3.0-webui-login-brute-force-via-login","label":"disclosure@vulncheck.com"}],"tags":["nvd"],"ingestedAt":"2026-10-10T16:27:15.748Z","slug":"CVE-2026-108580","body":"## Overview\n\nAniWorld 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.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"sunlit","depthScore":36,"depthScoreParts":{"impact":35.8,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}