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.

Attack Vector Network

Attack Complexity Low

Privileges Required None

Attack Requirements None

User Interaction None

Vulnerable System Confidentiality Impact Low

Vulnerable System Integrity Impact Low

Vulnerable System Availability Impact None

Subsequent System Confidentiality Impact None

Subsequent System Integrity Impact None

Subsequent System Availability Impact None

Attack Vector Network

Attack Complexity Low

Privileges Required None

Scope Unchanged

Confidentiality Impact Low

Integrity Impact Low

Availability Impact None

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

No EPSS score available.

Key SSVC decision points have not yet been added.

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions
phoenixthrush AniWorld Downloader unaffected
Version Status Constraints
0 affected < 5.3.0

No data.

No data.

OpenCVE Enrichment is a feature of OpenCVE that uses AI to automatically link vendors and products to CVEs. Learn more on GitHub.

No data.

Project Subscriptions

No data.

Advisories

No advisories yet.

Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

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

Sat, 10 Oct 2026 16:00:00 +0000

Type Values Removed Values Added
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.
Title AniWorld Downloader before 5.3.0 WebUI Login Brute Force via /login
Weaknesses CWE-307
References
Metrics cvssV3_1

{'score': 6.5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N'}

cvssV4_0

{'score': 6.9, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N'}

Projects

Sign in to view the affected projects.

cve-icon MITRE

Status: PUBLISHED

Assigner: VulnCheck

Published:

Updated: 2026-10-10T15:57:49.256Z

Reserved: 2026-10-10T15:51:34.830Z

Link: CVE-2026-108580

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2026-10-10T16:16:31.240

Modified: 2026-10-10T16:16:31.240

Link: CVE-2026-108580

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-10-10T17:30:05Z

Weaknesses