CVE-2023-4771

MEDIUM

CKEditor < 4.15.1 - Cross-Site Scripting via /ckeditor/samples/old/ajax.html

Title source: llm
STIX 2.1

Exploitation Summary

EIP tracks 1 public exploit for CVE-2023-4771. PoCs published by sahar042.

AI-analyzed exploit summary This repository provides a detailed technical writeup for CVE-2023-4771, an XSS vulnerability in CKEditor 4's AJAX sample. It includes step-by-step exploitation instructions, a payload example, and references to the vulnerable code and patch.

Description

A Cross-Site scripting vulnerability has been found in CKSource CKEditor affecting versions 4.15.1 and earlier. An attacker could send malicious javascript code through the /ckeditor/samples/old/ajax.html file and retrieve an authorized user's information.

Exploits (1)

nomisec WRITEUP 2 stars
by sahar042 · poc
https://github.com/sahar042/CVE-2023-4771

This repository provides a detailed technical writeup for CVE-2023-4771, an XSS vulnerability in CKEditor 4's AJAX sample. It includes step-by-step exploitation instructions, a payload example, and references to the vulnerable code and patch.

Classification
Writeup 90%
Attack Type
Xss
Complexity
Trivial
Reliability
Reliable
Target: CKEditor 4
No auth needed
Prerequisites: Access to a CKEditor instance with the vulnerable AJAX sample page
MITRE ATT&CK
devstral-2 · analyzed Feb 18, 2026 Full analysis →

References (1)

Core 1

Scores

CVSS v3 6.1
EPSS 0.2231
EPSS Percentile 96.0%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

CISA SSVC

Vulnrichment
Exploitation none
Automatable no
Technical Impact partial

Details

CWE
CWE-79
Status published
Products (2)
cksource/ckeditor < 4.15.1
npm/ckeditor4 0 - 4.24.0-ltsnpm
Published Nov 16, 2023
Tracked Since Feb 18, 2026