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CVE-2026-91983: Vikunja: API token scopes bypassed via task expand parameter (comments, reactions, time entry counts)

MEDIUM CVSS 0.0 EPSS 0.30% Exploit Available 2 PoC

Published: October 9, 2026 | Last Modified: October 9, 2026

Description

Vikunja: API token scopes bypassed via task expand parameter (comments, reactions, time entry counts)

Ghostwire Analysis — What This Means Practically

Exploitation Probability (EPSS): Low — 0.30% (21th percentile)

Low exploitation probability based on current threat landscape data. Standard patching timeline is appropriate.

This analysis is generated by Ghostwire from NVD, CISA KEV, EPSS, and open-source intelligence data. Verify findings through primary sources before acting.

Proof-of-Concept Exploits (2)

References