PT-2026-92092 · Vikunja · Vikunja
CVSS v4.0
8.7
High
| Vector | AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N |
Name of the Vulnerable Software and Affected Versions
Vikunja versions prior to 2.6.0
Description
An authentication bypass exists in CalDAV BasicAuth endpoints that lack rate limiting protection. Remote unauthenticated attackers can perform unbounded credential-guessing requests against the '/dav', '/.well-known', and '/feeds' endpoints to circumvent anti-brute-force controls and compromise accounts that rely solely on passwords.
Recommendations
Update to version 2.6.0 or later.
Exploit
Fix
Improper Restriction of Excessive Authentication Attempts
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Weakness Enumeration
Related Identifiers
Affected Products
Vikunja