CVE-2023-31541
CriticalCVSS 9.8Exploitation Probability (EPSS)
Elevated risk70th percentile - higher than 70% of all known CVEs
Summary
The CKEditor v1.2.3 plugin for Redmine has an unrestricted file upload vulnerability in the 'Browse and upload images' feature, allowing arbitrary files to be uploaded to the server.
Risk Assessment
An attacker can upload malicious files (e.g., PHP scripts) to the server, potentially leading to remote code execution, server compromise, or data theft.
Recommendation
Immediately update the CKEditor plugin to the latest version and implement file type validation and size restrictions for uploaded files.
Other vulnerabilities in CKEditor
See all- CVE-2020-9281Medium
CKEditor 4.0 before 4.14 contains a cross-site scripting (XSS) vulnerability in the HTML Data Processor. A remote attacker can inject arbitrary script through a crafted "protected" comment (with the cke_protected syntax).
- CVE-2021-26272Medium
In CKEditor 4 before 4.16, it was possible to execute a ReDoS-type attack by persuading a victim to paste crafted URL-like text into the editor, and then press Enter or Space (in the Autolink plugin).
- CVE-2021-26271Medium
In CKEditor 4 before 4.16, it was possible to execute a ReDoS-type attack by persuading a victim to paste crafted text into the Styles input of specific dialogs (in the Advanced Tab for Dialogs plugin).
- CVE-2020-27193Medium
A cross-site scripting (XSS) vulnerability in the Color Dialog plugin for CKEditor 4.15.0 allows remote attackers to run arbitrary web script after persuading a user to copy and paste crafted HTML code into one of the editor inputs.
Original NVD description (English source)
A unrestricted file upload vulnerability was discovered in the ‘Browse and upload images’ feature of the CKEditor v1.2.3 plugin for Redmine, which allows arbitrary files to be uploaded to the server.

