Is CVE-2026-33315 actively exploited?

No active exploitation of CVE-2026-33315 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2026-33315 be exploited remotely?

Yes. CVE-2026-33315 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2026-33315?

CVE-2026-33315 has a CVSS score of 4.3 (MEDIUM).

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MEDIUM

CVE-2026-33315

CWE-288Published: March 24, 2026· Updated: Mar 24, 2026

4.3

CVSS v3.1

EPSS:0.08%probability of exploitation in 30 daysPercentile:24.5th

Official Description

Vikunja is an open-source self-hosted task management platform. Prior to version 2.2.0, the Caldav endpoint allows login using Basic Authentication, which in turn allows users to bypass the TOTP on 2FA-enabled accounts. The user can then access standard project information that would normally be protected behind 2FA (if enabled), such as project name, description, etc. Version 2.2.0 patches the issue.

NVD Source

Technical Analysis

CVE-2026-33315 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

Exploitation requires low privileges, which limits the exposure to scenarios where an attacker has already gained initial access.