CVE-2026-123521
Deferred Deferred - Pending Action

Vikunja Session Brute-Force via TOTP Disable

Publication date: 2026-11-08

Last updated on: 2026-11-08

Assigner: VulnCheck

Description
Vikunja before 2.7.1 contains an improper restriction of excessive authentication attempts vulnerability that allows session holders to brute-force account passwords via unthrottled re-authentication endpoints. Attackers with a stolen session can guess the password via /user/settings/totp/disable without lockout, then disable TOTP without a code for persistent account takeover.

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Meta Information

Published
2026-11-08
Last Modified
2026-11-08
Generated
2026-11-08
EPSS Evaluated
N/A
NVD
CVE-2026-123521
EUVD
EUVD-2026-119406

Affected Vendors & Products

Showing 1 associated CPE
Vendor Product Version / Range
vikunja vikunja to 2.7.1 (exc)

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Exploitability

CWE
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KEV
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CWE ID Description
CWE-307 The product does not implement sufficient measures to prevent multiple failed authentication attempts within a short time frame.

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