What’s Vulnerable › Vulnerabilities

CVE-2026-54756: Jodit Editor: Prototype pollution via Jodit.configure() / ConfigMerge

• Severity: medium (CVSS 6.3 v4.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.5% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-07-01 · updated 2026-10-25
• Weakness: CWE-1321

Description

Jodit Editor is a WYSIWYG editor with written in pure TypeScript file and image editing capabilities. In versions prior to 4.12.18, Jodit.configure(options) — and the internal ConfigMerge / ConfigProto helpers — merged user-supplied options into the editor configuration without filtering prototype-mutating keys, potentially causing a Prototype Pollution vulnerability. A payload nested under an existing plain-object option such as controls could reach and mutate Object.prototype. Applications that pass user-controlled or partially user-controlled configuration into Jodit.configure() may be vulnerable. This issue was fixed in version 4.12.18.

Affected products

• xdan jodit: before 4.12.18

References

• https://github.com/xdan/jodit/security/advisories/GHSA-5957-5c94-3v7w
• https://github.com/xdan/jodit/security/advisories/GHSA-5957-5c94-3v7w

Get alerted when CVE-2026-54756 or the next vulnerability affects your stack