CVE-2026-19453
Received Received - Intake

JetBackup WordPress Plugin Privilege Escalation Vulnerability

Publication date: 2026-09-02

Last updated on: 2026-09-02

Assigner: WPScan

Description
The JetBackup WordPress plugin before 3.1.23.5 does not verify the role or capabilities of the account it preserves across a restore or migration before granting it administrator privileges, allowing a subscriber-level user to gain administrator access after the site owner restores or migrates the site.

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Meta Information

Published
2026-09-02
Last Modified
2026-09-02
Generated
2026-09-02
AI Q&A
2026-09-02
EPSS Evaluated
N/A
NVD
CVE-2026-19453
EUVD
EUVD-2026-69863

Affected Vendors & Products

Showing 3 associated CPEs
Vendor Product Version / Range
jetbackup jetbackup to 3.1.23.5 (exc)
jetbackup jetbackup 3.1.7.9
jetbackup jetbackup 3.1.23.3

Helpful Resources

Exploitability

CWE
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KEV
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CWE ID Description
CWE-UNKNOWN

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Executive Summary

This vulnerability is a privilege escalation flaw in the JetBackup WordPress plugin versions 3.1.7.9 to 3.1.23.3. It allows a subscriber-level user to gain administrator privileges during a site restore or migration because the plugin does not verify the role or capabilities of the account being restored.

Detection Guidance

Check the installed version of the JetBackup WordPress plugin. If it is between 3.1.7.9 and 3.1.23.3, the system is vulnerable. Run: wp plugin list | grep jetbackup to verify the version.

Impact Analysis

An attacker with subscriber-level access could exploit this to gain full administrator privileges on the WordPress site. This could lead to complete control over the site, including data theft, defacement, or further compromise of the server.

Compliance Impact

This vulnerability could lead to unauthorized access to sensitive data, violating compliance requirements under GDPR and HIPAA. Unauthorized admin access may result in data breaches, non-compliance penalties, and loss of trust.

Mitigation Strategies

Update the JetBackup plugin to version 3.1.23.5 or later immediately to patch the vulnerability. If updating is not possible, consider disabling the plugin temporarily until an update is applied.

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