cvedb.io
CVE-2026-18436
MEDIUM · CVSS 5.3
EPSS exploitation probability: 0%
Published 2026-07-31T10:16:45.020 · Last modified 2026-07-31T11:17:07.307

Summary

The MailPress plugin for WordPress is vulnerable to unauthorized access in versions up to, and including, 1.5.0 via the campaign revision-restore REST endpoint (POST /wp-json/mailpress/v1/campaign/<id>/restore-revision/<revision_id>). The route in the vulnerable range was registered without a permissionCallback, allowing the restoreRevision() handler to run for unauthenticated requests and overwrite a campaign's content_html with any prior revision. This makes it possible for unauthenticated attackers to modify campaign content by restoring an arbitrary revision.

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References

This product uses data from the NVD API but is not endorsed or certified by the NVD. Informational only; not professional security advice.