CVE-2026-54756
Jodit Editor: Prototype pollution via Jodit.configure() / ConfigMerge
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.
INFO
Published Date :
July 1, 2026, 9:17 p.m.
Last Modified :
Oct. 25, 2026, 4:10 p.m.
Remotely Exploit :
Yes !
Source :
[email protected]
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS | 134c704f-9b21-4f2e-91b3-4a467353bcc0 | |||||
| CVSS 4.0 | MEDIUM | [email protected] |
Solution
- Update Jodit Editor to version 4.12.18.
- Review and sanitize configuration options.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2026-54756.
| URL | Resource |
|---|---|
| https://github.com/xdan/jodit/security/advisories/GHSA-5957-5c94-3v7w | |
| https://github.com/xdan/jodit/security/advisories/GHSA-5957-5c94-3v7w |
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2026-54756 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2026-54756
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2026-54756 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2026-54756 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
CVE Translated by [email protected]
Oct. 25, 2026
Action Type Old Value New Value Added Translation Title: jodit de xdan, Description: Jodit Editor es un editor WYSIWYG escrito en TypeScript puro con capacidades de edición de archivos e imágenes. En versiones anteriores a la 4.12.18, Jodit.configure(options) - y los ayudantes internos ConfigMerge / ConfigProto - fusionaban opciones proporcionadas por el usuario en la configuración del editor sin filtrar claves que mutan el prototipo, lo que podría causar una vulnerabilidad de Prototype Pollution. Una carga útil anidada bajo una opción de objeto plano existente como controls podría alcanzar y mutar Object.prototype. Las aplicaciones que pasan configuración controlada por el usuario o parcialmente controlada por el usuario a Jodit.configure() pueden ser vulnerables. Este problema fue solucionado en la versión 4.12.18. -
CVE Modified by 134c704f-9b21-4f2e-91b3-4a467353bcc0
Jul. 02, 2026
Action Type Old Value New Value Added Reference https://github.com/xdan/jodit/security/advisories/GHSA-5957-5c94-3v7w Added SSVC {'id': 'CVE-2026-54756', 'role': 'CISA Coordinator', 'options': [{'exploitation': 'poc'}, {'automatable': 'no'}, {'technicalImpact': 'total'}], 'version': '2.0.3', 'timestamp': '2026-07-02T14:41:06.814851Z'} -
New CVE Received by [email protected]
Jul. 01, 2026
Action Type Old Value New Value Added Affected [{'vendor': 'xdan', 'product': 'jodit', 'versions': [{'status': 'affected', 'version': '< 4.12.18'}]}] Added 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. Added CVSS V4.0 AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:L/VA:L/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 Added CWE CWE-1321 Added Reference https://github.com/xdan/jodit/security/advisories/GHSA-5957-5c94-3v7w