What’s Vulnerable › Vulnerabilities

CVE-2023-53952: Dotclear 2.25.3 Authenticated Remote Code Execution via File Upload

• Severity: high (CVSS 8.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.1% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2025-12-19 · updated 2026-06-17
• Weakness: CWE-434

Description

Dotclear 2.25.3 contains a remote code execution vulnerability that allows authenticated attackers to upload malicious PHP files with .phar extension through the blog post creation interface. Attackers can upload files containing PHP system commands that execute when the uploaded file is accessed, enabling arbitrary code execution on the server.

Affected products

• Dotclear: 2.25.3

References

• https://dotclear.org/
• https://www.exploit-db.com/exploits/51353
• https://www.vulncheck.com/advisories/dotclear-authenticated-remote-code-execution-via-file-upload

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