Vulnerability in Two Factor — CVE-2026-100508

What to do now

Update Two Factor to 0.17.0 or later.

Affected versions

• Everything up to and including 0.16.0

The Two Factor plugin for WordPress is vulnerable to Denial of Service in all versions up to, and including, 0.16.0. This is due to insufficient validation of user supplied input. This makes it possible for unauthenticated attackers to make the affected site unavailable.

This description is reproduced verbatim from the public vulnerability record.

• https://www.wordfence.com/threat-intel/vulnerabilities/id/63fa161b-c1d0-4168-b7c2-79abe515d98b?source=api-prod

Part of this record comes from Wordfence Intelligence. Original: https://www.wordfence.com/threat-intel/vulnerabilities/id/63fa161b-c1d0-4168-b7c2-79abe515d98b
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