CVE-2026-115507: medium-severity vulnerability in go-vikunja vikunja
Vikunja 2.2.0 before 2.7.1 HTML Injection via Notification Email Header
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 5.1epss 0.3%
Vikunja 2.2.0 before 2.7.1 contains an HTML injection vulnerability in CreateConversationalHeader in pkg/notifications/mail.go that interpolates display names and task and project titles raw into email anchors. Authenticated users can craft titles or display names that close the anchor and inject phishing links into task-comment and task-mention notification emails sent to project members.
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:N/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%
References
https://github.com/go-vikunja/vikunjahttps://github.com/go-vikunja/vikunja/blob/v2.7.0/pkg/notifications/mail.go#L132-L148https://github.com/go-vikunja/vikunja/commit/18ff05932632c65dbc90a88118597989c6af4bf9https://github.com/go-vikunja/vikunja/releases/tag/v2.7.1https://github.com/go-vikunja/vikunja/security/advisories/GHSA-rp33-8f2m-hm6jhttps://www.vulncheck.com/advisories/vikunja-2.2.0-before-2.7.1-html-injection-via-notification-email-header