The BulletProof Security WordPress plugin is vulnerable to sensitive information disclosure due to a file path disclosure in the publicly accessible ~/db_backup_log.txt file which grants attackers the full path of the site, in addition to the path of database backup files. This affects versions up to, and including, 5.1.

References

• https://nvd.nist.gov/vuln/detail/CVE-2021-39327
• https://github.com/Hacker5preme/Exploits/tree/main/Wordpress/CVE-2021-39327
• https://plugins.trac.wordpress.org/changeset?sfp_email=&sfph_mail=&reponame=&old=2591118%40bulletproof-security&new=2591118%40bulletproof-security&sfp_email=&sfph_mail=
• https://www.exploit-db.com/exploits/50382
• https://www.wordfence.com/vulnerability-advisories/#CVE-2021-39327
• http://packetstormsecurity.com/files/164420/WordPress-BulletProof-Security-5.1-Information-Disclosure.html