Description
An issue was discovered in the XCloner Backup and Restore plugin before 4.2.13 for WordPress. It gave authenticated attackers the ability to modify arbitrary files, including PHP files. Doing so would allow an attacker to achieve remote code execution. The xcloner_restore.php write_file_action could overwrite wp-config.php, for example. Alternatively, an attacker could create an exploit chain to obtain a database dump.
Public exploits
Exploit or proof-of-concept code for this vulnerability is publicly available, which lowers the bar for attackers. Treat it as a reason to patch sooner.
Third-party code, not reviewed by us. Public PoCs are sometimes fake or contain malware. Read the code first and run it only in an isolated lab, against systems you are authorised to test.
Exploit-DB 1
- Wordpress Plugin XCloner 4.2.12 - Remote Code Execution (Authenticated) EDB-50077 · webapps · Jul 1, 2021
Sources: PoC-in-GitHub, Metasploit Framework, Exploit-DB — updated daily. Only links are listed; no exploit code is hosted here.
References
- https://www.wordfence.com/blog/2020/09/critical-vulnerabilities-patched-in-xcloner-backup-and-restore-plugin/
- https://wpscan.com/vulnerability/10412
- http://packetstormsecurity.com/files/163336/WordPress-XCloner-4.2.12-Remote-Code-Execution.html
- https://github.com/Hacker5preme/Exploits/tree/main/Wordpress/CVE-2020-35948