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

MITRE NVD CVE.ORG JSON API Print: PDF PDF

Summary

CVECVE-2023-5504
StatePUBLISHED
AssignerWordfence
Source PriorityCVE Program / NVD first with legacy fallback
Published2024-01-11 09:15:47 UTC
Updated2026-04-08 19:18:49 UTC
DescriptionThe 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.

Risk And Classification

Primary CVSS: v3.1 8.7 HIGH from [email protected]

CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:N/I:H/A:H

EPSS: 0.009260000 probability, percentile 0.567420000 (date 2026-07-22)

Problem Types: CWE-22 | CWE-22 CWE-22 Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')

VersionSourceTypeScoreSeverityVector
3.1[email protected]Primary8.7HIGHCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:N/I:H/A:H
3.1[email protected]Secondary8.7HIGHCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:N/I:H/A:H
3.1CNADECLARED8.7HIGHCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:N/I:H/A:H

CVSS v3.1 Breakdown

Attack Vector
Network
Attack Complexity
Low
Privileges Required
High
User Interaction
None
Scope
Changed
Confidentiality
None
Integrity
High
Availability
High

CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:N/I:H/A:H

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Application Inpsyde Backwpup All All All All

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Wp Media BackWPup WordPress Backup Restore Plugin affected 4.0.1 semver Not specified

References

ReferenceSourceLinkTags
plugins.trac.wordpress.org/browser/backwpup/trunk/inc/class-page-settings.php af854a3a-2127-422b-91ae-364da2661108 plugins.trac.wordpress.org Issue Tracking
www.wordfence.com/threat-intel/vulnerabilities/id/e830fe1e-1171-46da-8ee7-0a665... af854a3a-2127-422b-91ae-364da2661108 www.wordfence.com Product, Third Party Advisory
plugins.trac.wordpress.org/changeset af854a3a-2127-422b-91ae-364da2661108 plugins.trac.wordpress.org Patch
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

Vendor Comments And Credit

Discovery Credit

CNA: Marco Wotschka (en)

Additional Advisory Data

SourceTimeEvent
CNA2023-10-10T00:00:00.000ZDiscovered
CNA2023-11-22T00:00:00.000ZDisclosed

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