Client-Side Request Forgery in Vikunja Affects Multiple Versions
CVE-2026-123515

5.1MEDIUM

Key Information:

Vendor

Go-vikunja

Status
Vikunja
Vendor
CVE Published:
8 November 2026

What is CVE-2026-123515?

Vikunja before version 2.7.1 is susceptible to a client-side request forgery (CSRF) vulnerability. This flaw can be exploited by users with write access, enabling them to inject image elements into rich text fields. These images can trigger blind GET requests to loopback or local area network (LAN) addresses whenever a viewer accesses the content. Such an attack allows malicious users to monitor when specific items are opened, which poses significant risks to user privacy and local network security.

Affected Version(s)

vikunja 0 < 2.7.1

vikunja 2.7.1

References

https://github.com/go-vikunja/vikunja/security/advisories...
vendor-advisory
https://www.vulncheck.com/advisories/vikunja-before-2.7.1...
third-party-advisory

CVSS V4

Score:
5.1
Severity:
MEDIUM
Confidentiality:
None
Integrity:
Low
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
Unknown

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.