TI-2021-16696 Aliases CVE-2021-39327 GHSA-6qg5-vf7x-4fm3

BulletProof Security <= 5.1 Sensitive Information Disclosure

HIGH 68CWE-200Published 2021-09-17 · Updated 2025-03-31

Key facts

Attack vector: Network
Privileges required: None
User interaction: None
Attack complexity: Low
Impact type: Information disclosure
Confidentiality · integrity · availability: Low · None · None
Fix status: No fix listed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-200.

Summary

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.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV

EPSS 0.71688 99th percentileScored 2026-11-07

Public exploit Yes 3 exploit referencesTagged by NVD

Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation: None
Automatable: Yes
Technical impact: Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
AITpro	BulletProof Security	5.1 – 5.1	—	No fix listed	CNA

BulletProof Security VendorAITpro Affected 5.1 – 5.1 Fixed in — No fix listed CNA

CPE configurations NVD · 1

CPE	Versions	Role	Vendor
cpe:2.3:a:ait-pro:bulletproof_security::::::wordpress::*	up to 5.1	Vulnerable	AITpro

cpe:2.3:a:ait-pro:bulletproof_security:*:*:*:*:*:wordpress:*:* Versions up to 5.1 Vulnerable ·AITpro

Remediation

No fixed version listed by the sources yet.

Timeline

2026-10-02 Threatist record created from CVE-2021-39327
2026-10-03 Alias added: GHSA-6qg5-vf7x-4fm3

References

Exploit 3

Patch 1

https://plugins.trac.wordpress.org/changeset?sfp_email=&sfph_mail=&reponame=&old=2591118%40bulletproof-security&new=2591118%40bulletproof-security&sfp_email=&sfph_mail=

Advisory 1

https://www.wordfence.com/vulnerability-advisories/#CVE-2021-39327

TI-2014-06621 SQL injection vulnerability in admin/htaccess/bpsunlock.php in the BulletProof Security… CVSS 2.0MEDIUM 6.5
TI-2014-07178 Server-side request forgery (SSRF) vulnerability in admin/htaccess/bpsunlock.php in the… CVSS 2.0MEDIUM 5.0
TI-2015-07610 In the admin/db-backup-security/db-backup-security.php page in the BulletProof Security… CVSS 3.1MEDIUM 4.8
TI-2014-06620 Cross-site scripting (XSS) vulnerability in admin/htaccess/bpsunlock.php in the… CVSS 2.0MEDIUM 4.3
TI-2022-01150 BulletProof Security < 6.1 - Admin+ Stored Cross-Site Scripting CVSS 3.1MEDIUM 4.8
TI-2022-00507 BulletProof Security < 5.8 - Admin+ Stored Cross-Site Scripting (XSS) CVSS 3.1MEDIUM 4.8

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences