SB2022041113 - Arbitrary file upload in AeroCMS

Description

This security bulletin contains information about 2 secuirty vulnerabilities.

1) Arbitrary file upload (CVE-ID: CVE-2022-27061)

The vulnerability allows a remote user to compromise vulnerable system.

The vulnerability exists due to insufficient validation of file during file upload in the Post Image function under the Admin panel. A remote administrator can upload a malicious file and execute it on the server.

2) Stored cross-site scripting (CVE-ID: CVE-2023-29847)

The disclosed vulnerability allows a remote attacker to perform cross-site scripting (XSS) attacks.

The vulnerability exists due to insufficient sanitization of user-supplied data in the comment_author and comment_content parameters at /post.php. A remote attacker can inject and execute arbitrary HTML and script code in user's browser in context of vulnerable website.

Successful exploitation of this vulnerability may allow a remote attacker to steal potentially sensitive information, change appearance of the web page, perform phishing and drive-by-download attacks.

Remediation

Cybersecurity Help is not aware of any official remediation provided by the vendor.

References

• https://drive.google.com/file/d/1PdF7gTUt_QuU2ObS9YUVew6orHaho-QF/view?usp=sharing
• https://github.com/D4rkP0w4r/AeroCMS-Unrestricted-File-Upload-POC
• http://packetstormsecurity.com/files/166659/AeroCMS-0.0.1-Shell-Upload.html
• https://github.com/MegaTKC/AeroCMS/issues/11