Prototype pollution in Jodit Editor - CVE-2026-55886

CSH
CYBERSECURITY HELP
Sign In REGISTER
 
Main Vulnerability Database Vulnerabilities #VU139550

Prototype pollution in Jodit Editor - CVE-2026-55886

Published: July 27, 2026


Vulnerability identifier: #VU139550
CSH Severity: Medium
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P/U:Green
CVE-ID: CVE-2026-55886
CWE-ID: CWE-1321
Exploitation vector: Remote access
Exploit availability: Public exploit is available
Vendor: xdan (Valeriy)
Affected software:
Jodit Editor

Detailed vulnerability description

The vulnerability allows a remote attacker to execute arbitrary JavaScript code.

The vulnerability exists due to improper input validation in Jodit.modules.Helpers.set(). A remote attacker can pass specially crafted input to the application and perform prototype pollution, which can result in information disclosure or data manipulation.


How to mitigate CVE-2026-55886

Install updates from vendor's website.

Sources