Dashboard / CVE-2026-35601

CVE-2026-35601

MEDIUM
MEDIUM Priority: 0.01 BB Relevance: 48/100
Published: 2026-04-10 Modified: 2026-10-26 First seen: 2026-10-29 Status: active

Attack Surface

Network Low Complexity Scope Change

CVSS Vector Breakdown

AV: Network
AC: Low
PR: Low
UI: Required
S: Changed
C: None
I: Low
A: None

Description

Vikunja is an open-source self-hosted task management platform. Prior to 2.3.0, the CalDAV output generator builds iCalendar VTODO entries via raw string concatenation without applying RFC 5545 TEXT value escaping. User-controlled task titles containing CRLF characters break the iCalendar property boundary, allowing injection of arbitrary iCalendar properties such as ATTACH, VALARM, or ORGANIZER. This vulnerability is fixed in 2.3.0.

Weakness Classification (1)

Affected Software (1)

VendorProductVersion
vikunja vikunja < 2.3.0

References & Advisories (3)

Bug Bounty Relevance

48 / 100
✓ Network accessible
✓ Low complexity

CVSS Score

4.1 / 10.0 v3.1
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:N/I:L/A:N

EPSS — Exploitation Probability

0.20%
Raw Score 0.001960
Percentile 9.3%
Date 2026-10-29

EPSS Trend

2026-10-29
0.00196
2026-10-28
0.00196

Intelligence Sources

nvd ref →

External Links