CVE-2026-123506: medium-severity vulnerability in go-vikunja vikunja
Vikunja 2.2.0 before 2.7.1 Token Scope Bypass via Project Webhook Endpoints
Published · Updated
E-mail alert when it lands in KEV, gets a public PoC or its score goes up.
13Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 5.3epss 0.2%
Vikunja from 2.2.0 before 2.7.1 contains an authorization bypass vulnerability that allows holders of tokens scoped only to projects_webhooks to manage the owner's user-level webhooks by supplying user_id in request bodies. Attackers can register user webhooks to their own receiver to obtain reminders and task payloads from all owner projects, and read, change or delete existing user webhooks.
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N
Affected products
go-vikunja · vikunjaRelated CVEs — go-vikunja vikunja
In the same product, most dangerous first.
CVE-2026-33336MEDIUMVikunja Desktop vulnerable to Remote Code Execution via same-window navigationEPSS 1.2%CVE-2026-27819HIGHVikunja has Path Traversal in CLI RestoreEPSS 0.8%CVE-2026-28268CRITICALVikunja Vulnerable to Account Takeover via Password Reset Token ReuseEPSS 0.7%CVE-2026-91973HIGHVikunja before 2.6.0 Authentication Bypass via CalDAV BasicAuthEPSS 0.7%CVE-2026-91972HIGHVikunja before 2.6.0 Authentication Bypass via Unthrottled APIEPSS 0.6%CVE-2026-27616HIGHVikunja Vulnerable to Stored Cross-Site Scripting (XSS) via Unsanitized SVG Attachment Upload Leading to Token ExposureEPSS 0.5%