CVE-2026-108580

MEDIUM 6.5

AniWorld Downloader before 5.3.0 WebUI Login Brute Force via /login

CVSS Score

6.5

EPSS Score

0.0%

EPSS Percentile

0th

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.

CWE	CWE-307
Vendor	phoenixthrush
Product	aniworld downloader
Published	Oct 10, 2026

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CVSS v3 Breakdown

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

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

Low

Integrity

Low

Availability

None

Affected Versions

phoenixthrush / AniWorld Downloader

0 < 5.3.0

References

NVD ↗ CVE.org ↗ EPSS Data ↗

github.com: https://github.com/phoenixthrush/AniWorld-Downloader/issues/334 github.com: https://github.com/phoenixthrush/AniWorld-Downloader/commit/3c070bd10665377308a3092e11933681c18a5fd1 github.com: https://github.com/phoenixthrush/AniWorld-Downloader/releases/tag/v.5.3.0 hackmd.io: https://hackmd.io/@haind/aniworld-login-brute-force github.com: https://github.com/phoenixthrush/AniWorld-Downloader/blob/bb13599d17937fdb4df2df699024bc233f0656f2/src/aniworld/web/auth.py#L239-L256 vulncheck.com: https://www.vulncheck.com/advisories/aniworld-downloader-before-5.3.0-webui-login-brute-force-via-login

Credits

SiroxCW HaiND from the Post and Telecommunication Institute of Technology