CVE-2026-108580
AniWorld Downloader before 5.3.0 contains an improper restriction of authentication attempts…
- Risk score
- 42/100
- CVSS
- 6.5 v3.1
- Exploit chance (30 days)
- 0.3%
- Published
- 10 Oct 2026
Open in the live forecast Today's forecast
What to know
- What it is
- 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 exp…
- Affected
- See advisory
- Fix
- Upgrade the product to 5.3.0 or later.
- Exploitation
- No known exploitation
Why it is Yellow
- CVSS 6.5 medium
References
- https://github.com/phoenixthrush/AniWorld-Downloader/blob/bb13599d17937fdb4df2df699024bc233f0656f2/src/aniworld/web/auth.py#L239-L256
- https://github.com/phoenixthrush/AniWorld-Downloader/commit/3c070bd10665377308a3092e11933681c18a5fd1
- https://github.com/phoenixthrush/AniWorld-Downloader/issues/334
- https://github.com/phoenixthrush/AniWorld-Downloader/releases/tag/v.5.3.0
- https://hackmd.io/@haind/aniworld-login-brute-force
- https://www.vulncheck.com/advisories/aniworld-downloader-before-5.3.0-webui-login-brute-force-via-login
Original description
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.
Last activity 10 Oct 2026. Patch Forecast updates every hour.