CVE-2026-108580 Details
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.
A vulnerability allowing brute force attacks on the WebUI login has been identified in AniWorld Downloader versions prior to 5.3.0. The issue arises from an improper restriction of authentication attempts in the login POST handler, which allows unauthenticated attackers to guess passwords without any throttling. This vulnerability can be exploited by enumerating usernames through response timing and brute-forcing passwords on exposed WebUI instances, potentially leading to account takeovers.
Users can update to AniWorld Downloader version 5.3.0 or later, where this vulnerability has been addressed. Instructions for downloading the latest version are available on the AniWorld Downloader GitHub Releases page.
Metrics
CVSS 4.0 Severity and Vector Strings:
VolerionCVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
Volerion
Assessed Oct 10, 2026CISA-ADP
Assessed Oct 13, 2026References to Advisories, Solutions, and Tools
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Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-307 | Improper Restriction of Excessive Authentication Attempts | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| AniWorld Downloader | >= 0, < 5.3.0 |
CPE
Remediation
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Change History
2 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Oct 13, 2026 | CVE Modified | CISA-ADP |
| Oct 10, 2026 | New CVE Received | [email protected] |