WordPress Plugin Vulnerabilities

JetBackup 3.1.7.9 - 3.1.23.3 - Subscriber+ Privilege Escalation via Restore Admin User Selection

Description

The plugin 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.

Proof of Concept

Affects Plugins

Fixed in 3.1.23.5

References

Classification

Miscellaneous

Original Researcher
Jakub Herman
Submitter
Jakub Herman
Submitter website
Verified
Yes

Timeline

Publicly Published
2026-08-31 (about 2 days ago)
Added
2026-08-31 (about 1 day ago)
Last Updated
2026-09-01 (about 8 hours ago)

Other