Dashboard / CVE-2026-123515

CVE-2026-123515

MEDIUM
MEDIUM Priority: 0.01 BB Relevance: 50/100
Published: 2026-11-08 Modified: 2026-11-08 First seen: 2026-11-08 Status: active

Attack Surface

Network Low Complexity

CVSS Vector Breakdown

AV: Network
AC: Low
PR: Low
UI: Passive
S: X
AT: None
VC: None
VI: Low
VA: None

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.

Weakness Classification (1)

Affected Software (1)

VendorProductVersion
go-vikunja vikunja 0 < 2.7.1

References & Advisories (2)

Bug Bounty Relevance

50 / 100
✓ Network accessible
✓ Low complexity

CVSS Score

5.1 / 10.0 v4.0
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:N/VI:L/VA:N/SC:N/SI:L/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

EPSS — Exploitation Probability

0.17%
Raw Score 0.001700
Percentile 6.4%
Date 2026-11-08

Intelligence Sources

mitre ref →
nvd ref →

External Links