CVE-2026-25935 describes a Cross-Site Scripting (XSS) vulnerability in Vikunja, a todo-app, affecting versions prior to 1.1.0. A malicious authenticated user can inject arbitrary HTML or script code into task descriptions, which executes when another user hovers over the task due to improper escaping. This vulnerability has a CVSS score of 5.4 (Medium), indicating a network-based attack with low complexity requiring user interaction, potentially leading to limited confidentiality and integrity impacts. There is currently no evidence of active exploitation, nor are public exploit codes available in Metasploit, Nuclei, or ExploitDB, though it has received some community and media attention.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
< 1.1.0CPE matchmatch criteria | cpe:2.3:a:vikunja:vikunja:*:*:*:*:*:*:*:* |
CVSS version used by this source: 4.0
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:N/SC:N/SI:N/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
The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.0 Bluesky, 0.0 Mastodon, and 0.1 GitHub mentions.
The average CVE in this peer group has 0.0 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.