CVE-2026-86815
Received Received - Intake

BackWPup WordPress Plugin Unauthorized Backup Job Execution

Publication date: 2026-09-11

Last updated on: 2026-09-11

Assigner: WPScan

Description
The BackWPup WordPress plugin before 5.7.5 does not properly restrict access to several of its REST API routes for job, backup-destination, and backup-execution management, allowing users holding a BackWPup WordPress plugin before 5.7.5-defined, administrator-assigned limited role to create and run backup jobs and exfiltrate a full database backup to an attacker-controlled destination.

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Meta Information

Published
2026-09-11
Last Modified
2026-09-11
Generated
2026-09-11
AI Q&A
2026-09-11
EPSS Evaluated
N/A
NVD
CVE-2026-86815
EUVD
EUVD-2026-75973

Affected Vendors & Products

Showing 2 associated CPEs
Vendor Product Version / Range
backwpup backwpup to 5.7.5 (exc)
backwpup backwpup From 5.2.2 (inc) to 5.7.5 (exc)

Helpful Resources

Exploitability

CWE
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KEV
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CWE ID Description
CWE-UNKNOWN

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Executive Summary

CVE-2026-86815 is a vulnerability in the BackWPup WordPress plugin versions 5.2.2 through 5.7.4. It involves missing authorization checks on certain REST API routes, allowing users with limited administrator-assigned roles to create and execute backup jobs. This flaw enables the exfiltration of full database backups to attacker-controlled destinations.

Detection Guidance

Check the installed version of the BackWPup plugin. If it is between 5.2.2 and 5.7.4, the system is vulnerable. Use WordPress admin panel or run the command: wp plugin list | grep backwpup in the WordPress directory.

Impact Analysis

An attacker with limited admin privileges could exploit this to create and run backup jobs, stealing your full database backup. This could expose sensitive user data, credentials, or other confidential information stored in your WordPress database.

Compliance Impact

This vulnerability could lead to unauthorized access and exfiltration of personal data, violating GDPR and HIPAA requirements for data protection and access control. Organizations may face legal penalties and reputational damage.

Mitigation Strategies

Update the BackWPup plugin to version 5.7.5 or later immediately. Disable the plugin temporarily if an update is not possible right away. Review user roles with limited administrator access to ensure they are necessary.

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