Keyy Two Factor Authentication (like Clef) <= 1.2.3 - Authenticated (Subscriber+) Privilege Escalation via Account Takeover
Strategic Overview
- Status
- Unpatched
- Affected Plugin
- Keyy Two Factor Authentication (like Clef)
- Affected Version
<= 1.2.3- CVSS
- 8.8High
- Weakness type
- CWE-287 · Improper Authentication
- CVE
CVE-2025-10293
At a glance
CVE-2025-10293 is a high-severity Improper Authentication vulnerability in the Keyy Two Factor Authentication (like Clef) WordPress plugin, affecting versions <= 1.2.3. It carries a CVSS score of 8.8 (reachable over the network; low attack complexity; high confidentiality, integrity, availability impact). Exploitation requires an authenticated account at Subscriber level or above. No fixed release has been reported yet; treat installations running this software as exposed. Disclosed October 2025, reported by Jonas Benjamin Friedli.
Vulnerability Overview
The Keyy Two Factor Authentication (like Clef) plugin for WordPress is vulnerable to privilege escalation via account takeover in all versions up to, and including, 1.2.3. This is due to the plugin not properly validating a user's identity associated with a token generated. This makes it possible for authenticated attackers, with subscriber-level access and above, to generate valid auth tokens and leverage that to auto-login as other accounts, including administrators, as long as the administrator has the 2FA set up.
Technical Analysis
The vector marks this flaw as remotely reachable over the network, with low attack complexity — no special timing or configuration is needed, and no interaction from a victim user. A successful exploit has high impact on confidentiality, integrity, availability — full site compromise territory.
CWE-287: Improper Authentication
Reaching this weakness in Keyy Two Factor Authentication (like Clef) <= 1.2.3 takes an account at Subscriber level or above. Improper authentication means the mechanism that proves who a caller is can be satisfied without the secret it was supposed to require.
An attacker authenticates as another user — administrators included — without ever knowing a password, so password policies and login rate limits never come into play. No fixed build of this plugin is recorded for Keyy Two Factor Authentication (like Clef) yet, so installs running <= 1.2.3 stay exposed until the vendor ships one.
Remediation
No known patch available. Please review the vulnerability's details in depth and employ mitigations based on your organization's risk tolerance. It may be best to uninstall the affected software and find a replacement.
How does WordSec protect against this?
Because it turns on account access, WordSec's login security is the relevant layer: role-based two-factor, captcha and brute-force limits raise the cost of getting the account this needs. No patched version is recorded yet, which is the case where a filtering layer matters most, because there is nothing to update to.
- Login Security
- Alerts
External References
Vulnerability data © Defiant, Inc., provided under the Wordfence Intelligence T&C