CVE-2026-8760Login with OTP <= 1.6 - Unauthenticated Authentication Bypass via OTP Brute Force
- 9.8CriticalCVSS base score
- 1.0%Exploitation in 30 daysEPSS · top 36% of all CVEs
- NoKnown exploitednot in CISA's KEV catalog
- NonePublic exploitsnone known yet
Description
The Login with OTP plugin for WordPress is vulnerable to authentication bypass in all versions up to, and including, 1.6. This is due to an incomplete fix for CVE-2024-11178: the rate-limit/lockout check added to `otpl_login_action()` was placed only inside the OTP-generation branch and is never evaluated on the OTP-validation branch, and the generated 6-digit OTP additionally has no expiration. This makes it possible for unauthenticated attackers to brute-force the 900,000-value OTP space for any user account (including administrators) and obtain a valid `wp_set_auth_cookie()` session, leading to full site compromise.
Timeline
ID reserved
By Wordfence
- 11 days later
· 11 days later
Published
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| WordfenceCNA (assigner) | 3.1 | Critical9.8 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
| NVDNVD · Deferred | 3.1 | Critical9.8 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
- EPSS (exploitation in 30 days)
- 1.0% · top 36% of all CVEs (13 Nov 2026)
- CISA SSVC
- Exploitation: none · Automatable: yes · Technical impact: total
The list uses the assigner's score when there is one, then CISA's, then NVD's: Critical 9.8.
Affected products
india-web-developer · Login with OTP
- affected <= 1.6
References
References10
- https://www.wordfence.com/threat-intel/vulnerabilities/id/ad22cb24-e6a0-456f-afe8-88a39acd97d3?source=cve (opens in a new tab)
- https://plugins.trac.wordpress.org/browser/otp-login/tags/1.6/lib/otpl-class.php#L419 (opens in a new tab)
- https://plugins.trac.wordpress.org/browser/otp-login/trunk/lib/otpl-class.php#L419 (opens in a new tab)
- https://plugins.trac.wordpress.org/browser/otp-login/tags/1.6/lib/otpl-class.php#L424 (opens in a new tab)
- https://plugins.trac.wordpress.org/browser/otp-login/trunk/lib/otpl-class.php#L424 (opens in a new tab)
- https://plugins.trac.wordpress.org/browser/otp-login/tags/1.6/lib/otpl-class.php#L427 (opens in a new tab)
- https://plugins.trac.wordpress.org/browser/otp-login/trunk/lib/otpl-class.php#L427 (opens in a new tab)
- https://plugins.trac.wordpress.org/browser/otp-login/tags/1.6/lib/otpl-class.php#L361 (opens in a new tab)
- https://plugins.trac.wordpress.org/browser/otp-login/trunk/lib/otpl-class.php#L361 (opens in a new tab)
- https://nvd.nist.gov/vuln/detail/CVE-2024-11178 (opens in a new tab)
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- EUVD EUVD-2026-32084 (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://cveledger.app/cve/CVE-2026-8760)Record last updated .