Prototype pollution in Jodit Editor - CVE-2026-54756
Published: July 27, 2026
Vulnerability identifier: #VU139517
CSH Severity: Medium
CVSS v4: 6.9 [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]
CVE-ID: CVE-2026-54756
CWE-ID: CWE-1321
Exploitation vector: Remote access
Exploit availability:
Public exploit is available
Vulnerability details
The vulnerability allows a remote attacker to execute arbitrary JavaScript code.
The vulnerability exists due to improper input validation within Jodit.configure(options) and the internal ConfigMerge, ConfigProto helpers. A remote attacker can pass specially crafted input to the application and perform prototype pollution, which can result in information disclosure or data manipulation.
Affected software
Jodit Editor
How to mitigate CVE-2026-54756
Install updates from vendor's website.
Jodit Editor - update to 4.12.18