CVE-2026-115507 Details
Description
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.
A vulnerability allowing HTML injection has been identified in Vikunja versions 2.2.0 prior to 2.7.1. This issue arises in the 'CreateConversationalHeader' function within 'pkg/notifications/mail.go', where display names, task titles, and project titles are inserted into email anchors without proper escaping. As a result, authenticated users can manipulate these fields to close the anchor tags prematurely and inject phishing links. This malicious content is then delivered through task-comment and task-mention notification emails to project members.
Users can update Vikunja to version 2.7.1, where this vulnerability has been fixed.
Metrics
CVSS 4.0 Severity and Vector Strings:
VolerionCVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
Volerion
Assessed Oct 22, 2026CISA-ADP
Assessed Nov 4, 2026References to Advisories, Solutions, and Tools
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Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-79 | Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| Vikunja | <= 2.7.0 (semver) |
CPE
Remediation
| |
Change History
2 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Nov 4, 2026 | CVE Modified | CISA-ADP |
| Oct 22, 2026 | New CVE Received | [email protected] |