Vulnerability Report

CVE-2026-23516

Title: XSS in CVAT UI

XSS

Proof Of Concept

No public PoC currently indexed for CVE-2026-23516.

CWE Category CWE-83

Published Date Jan 21, 2026

Modified Date Feb 20, 2026

Exploit Status Not Found

Score 8.6 CVSS v4.0

Exploit Probability (EPSS)

0.14%

Vulnerability Summary

CVE-2026-23516: CVAT is an open source interactive video and image annotation tool for computer vision. In versions 2.2.0 through 2.54.0, an attacker is able to execute arbitrary JavaScript in a victim user's CVAT UI session, provided that they are able to create a maliciously crafted label in a CVAT task or project, then get the victim user to either edit that label, or view a shape that refers to that label; and/or get the victim user to upload a maliciously crafted SVG image when configuring a skeleton. This gives the attacker temporary access to all CVAT resources that the victim user can access. Version 2.55.0 fixes the issue.

Impacted Vendors

intel 1

cvat 2

Reference Links

https://github.com/cvat-ai/cvat/commit/40800707fe39e3ff76c8d036eb953eb12d764e70 https://github.com/cvat-ai/cvat/security/advisories/GHSA-3m7p-wx65-c7mp

CVSS v4.0

Source Entity [email protected]

Severity HIGH

8.6

Attack Vector

NETWORK

Complexity

LOW

Privileges

N/A

Interaction

PASSIVE

Confidentiality

N/A

Integrity

N/A

Availability

N/A

Scope

N/A

RAW VECTOR

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

CVSS v3.1

Source Entity [email protected]

Severity MEDIUM

5.4

Attack Vector

NETWORK

Complexity

LOW

Privileges

N/A

Interaction

REQUIRED

Confidentiality

N/A

Integrity

N/A

Availability

N/A

Scope

CHANGED

RAW VECTOR CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N

Associated Attack Patterns (CAPEC)

Total: Patterns