BackWPup <= 4.0.1 - Authenticated (Administrator+) Directory Traversal
Key facts
- Attack vector
- Network
- Privileges required
- High
- User interaction
- None
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- None · High · High
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA.
Summary
The BackWPup plugin for WordPress is vulnerable to Directory Traversal in versions up to, and including, 4.0.1 via the Log File Folder. This allows authenticated attackers to store backups in arbitrary folders on the server provided they can be written to by the server. Additionally, default settings will place an index.php and a .htaccess file into the chosen directory (unless already present) when the first backup job is run that are intended to prevent directory listing and file access. This means that an attacker could set the backup directory to the root of another site in a shared environment and thus disable that site.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2023-5504
- 2026-10-03 Alias added: GHSA-mh4j-2c4w-jxfr
References
More WP Media vulnerabilities
- TI-2024-03858 Search & Replace < 3.2.2 - Admin+ SQL injection CVSS 3.1HIGH 7.2
- TI-2024-25993 WordPress Search & Replace plugin <= 3.2.2 - Deserialization of untrusted data vulnerability CVSS 3.1CRITICAL 9.8
- TI-2026-69868 Code injection in WordPress WP Rocket plugin CVSS 3.1HIGH 7.5
- TI-2026-05204 Cross-site scripting in WP Rocket CVSS 3.1HIGH 7.2
- TI-2026-05464 BackWPup <= 5.6.6 - Authenticated (Administrator+) Local File Inclusion via 'block_name' Parameter CVSS 3.1HIGH 7.2
- TI-2026-69877 Missing authorization in WordPress WP Rocket plugin CVSS 3.1MEDIUM 6.5
Sources
- CVE-2023-5504 · CVE Program
- CVE-2023-5504 · NVD
- FIRST EPSS
- GHSA-mh4j-2c4w-jxfr · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences