CVE-2023-5504

BackWPup <= 4.0.1 - Authenticated (Administrator+) Directory Traversal

HIGH
8.7
CVSS Score
Published: January 11, 2024 at 08:33 AM UTC
Updated: June 17, 2026 at 06:48 AM UTC
2 products affected across 2 vendorsBackwpupBackWPup

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Severity
HIGH8.7
Exploit prediction
EPSS 0.9%
SSVC
No known exploit

Description

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Backwpup· Inpsydewordpress-plugin
95%
v ≤ 4.0.1
BackWPup· Wp Mediawordpress-plugin
60%
v ≤ 4.0.1

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

SSVC — Action Prioritization

SSVCNo known exploitNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

8.7HIGHWordfence
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-22

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