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PatchSiren cyber security CVE debrief

CVE-2026-5753 servmask CVE debrief

The All-in-One WP Migration Unlimited Extension plugin for WordPress is vulnerable to Missing Authorization in versions up to, and including, 2.83. This is due to the 'Ai1wmve_Schedules_Controller::save' handler for 'admin_post_ai1wm_schedule_event_save' not verifying user capabilities before saving schedule data. This makes it possible for authenticated attackers, with subscriber-level access and above, to create scheduled export jobs and send backup notifications to attacker-controlled email addresses. As a result, full site backups can be downloaded, leading to sensitive information exposure. Administrators should be aware of this vulnerability and take immediate action.

Vendor
servmask
Product
All-in-One WP Migration Unlimited Extension
CVSS
MEDIUM 6.5
CISA KEV
Not listed in stored evidence
Original CVE published
2026-05-06
Original CVE updated
2026-07-24
Advisory published
2026-05-06
Advisory updated
2026-07-24

Who should care

Administrators of WordPress sites using the All-in-One WP Migration Unlimited Extension plugin, especially those with subscriber-level access or above, should be aware of this vulnerability and take immediate action to protect their sites. They should review their site's exposure, apply updates or mitigations, and monitor for suspicious activity.

Technical summary

The vulnerability exists in the 'Ai1wmve_Schedules_Controller::save' handler for 'admin_post_ai1wm_schedule_event_save' in the All-in-One WP Migration Unlimited Extension plugin. The handler fails to verify user capabilities before saving schedule data, allowing authenticated attackers with subscriber-level access and above to create scheduled export jobs and send backup notifications to attacker-controlled email addresses. This can lead to sensitive information exposure if backup notifications include random backup filenames.

Defensive priority

High

Recommended defensive actions

  • Update the All-in-One WP Migration Unlimited Extension plugin to a version that fixes the vulnerability.
  • Restrict access to the plugin's settings and features to authorized personnel only.
  • Monitor site activity for suspicious scheduled export jobs and backup notifications.
  • Implement additional security measures, such as two-factor authentication and regular backups.
  • Review compensating controls for exposed systems while remediation is scheduled and verified.
  • Check relevant monitoring, detection, and logs for exposed assets that need extra review.
  • Track exceptions, retest remediated assets, and close the item only after evidence is documented.

Evidence notes

The CVE record was published on 2026-05-06T04:16:09.097Z and was last modified on 2026-07-24T09:10:00.153Z. The NVD entry is currently Deferred. Evidence is limited to CVE and NVD data. Defenders should verify product presence, review official advisories, and monitor for suspicious activity.

Sources and references

Verified primary and authoritative sources

  • CVE-2026-5753 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2026-5753

    CVE Program - Official CVE Program record with source-provided CVE metadata.

  • CVE-2026-5753 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2026-5753

    NIST National Vulnerability Database - Official NIST NVD detail page and source-specific vulnerability assessment.

Supplemental references

Methodology and review provenance

AI-assisted synthesis based on stored public vulnerability evidence. System validation, approval state, and publication status do not by themselves establish human review of this revision. PatchSiren helps prioritize defensive review and does not prove exposure or remediation on any system.