Vulnerability · Published Nov 8, 2026 · Assigned by VulnCheck
CVE-2026-123515Vikunja before 2.7.1 Client-Side Request Forgery via Stored Rich-Text Images
Medium 4.1
In plain English
A medium-severity security flaw in vikunja from go-vikunja. There are no confirmed reports of exploitation so far.
Severity (CVSS 3.1)4.1Medium
Exploit odds (30 days)–no EPSS score yet
Exploited in the wildNo reportsnot in CISA KEV
Attack toolingNoneno public tooling known
Official description
Vikunja before 2.7.1 contains a client-side request forgery vulnerability that allows users with write access to make viewers' clients request loopback or LAN addresses by storing img elements in rich text. Attackers can plant images in tasks, comments, project descriptions, or imported Markdown to trigger blind GET requests against local services and track when viewers open content.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| go-vikunja | vikunja | 0 – before 2.7.1 |
Weakness: CWE-441 · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:N/I:L/A:N
References
- GitHub Security Advisory (GHSA-2f75-93c9-xf32) vendor-advisory
- VulnCheck Advisory: Vikunja before 2.7.1 Client-Side Request Forgery via Stored Rich-Text Images third-party-advisory