CVE-2026-5753: ServMask All-in-One WP Migration Unlimited Extension missing authorization

CVE-2026-5753 · Severity: medium · CVSS 6.5 · Published 2026-05-06

A vulnerability in a popular WordPress migration and backup plugin allows low-level users, such as subscribers, to gain unauthorized access to full website backups. By manipulating the plugin's scheduling feature, an attacker can trigger a backup and have the download link sent to their own email address. This could lead to the theft of sensitive site data, including customer information and configuration files.

Vendors: ServMask.

Quick answers

Is CVE-2026-5753 exploited in the wild?
No. Junglewise Threat Intelligence has no report of CVE-2026-5753 being exploited in the wild.
How severe is CVE-2026-5753?
Medium severity, with a CVSS score of 6.5, published 6 May 2026.
Which products and versions are affected?
ServMask All-in-One WP Migration Unlimited Extension up to, and including, 2.83.
Is there a fix for CVE-2026-5753?
A patch was published on 2026-03-16: Version 2.84 released to address permission issues. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
How is CVE-2026-5753 attacked?
It is attacked over the network, in a software library.
Am I affected by CVE-2026-5753?
Check whether you run ServMask All-in-One WP Migration Unlimited Extension at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

Technical details

The All-in-One WP Migration Unlimited Extension plugin for WordPress fails to perform adequate capability checks in the 'Ai1wmve_Schedules_Controller::save' handler. This missing authorization vulnerability allows authenticated attackers with subscriber-level permissions or higher to submit malicious requests to the 'admin_post_ai1wm_schedule_event_save' action. Attackers can create new scheduled export jobs and configure the notification email to an address they control. Because the resulting email notifications contain the randomized filename of the backup, the attacker can then download the complete site backup directly from the server. The issue is addressed in version 2.84.

Affected products

  • ServMask All-in-One WP Migration Unlimited Extension up to, and including, 2.83

Timeline

  • 2026-03-16: patched: Version 2.84 released to address permission issues.
  • 2026-05-06: disclosed: Initial disclosure by Wordfence.
  • 2026-05-06: advisory: NVD published the CVE record.

References

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