How severe is CVE-2026-15985?

CVE-2026-15985 has a CVSS 3.x base score of 8.1, rated high severity. It is exploitable over network with high attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2026-15985 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (23rd percentile), an estimate of the probability of exploitation in the next 30 days.

How do I fix CVE-2026-15985?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2026-15985 published?

CVE-2026-15985 was published on 2026-08-26.

CVE-2026-15985

CVE-2026-15985 is a high-severity vulnerability with a CVSS 3.x base score of 8.1. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-289.

Key facts

Severity: High (CVSS 3.x base score 8.1)
EPSS exploit prediction: 0% (23rd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-289
Published: 2026-08-26
Last modified: 2026-08-26

Description

The Classified Listing - Mobile Number Verification plugin for WordPress is vulnerable to Authentication Bypass in all versions up to, and including, 1.6.0. This is due to missing server-side Firebase OTP validation in the process_otp_login() function. This makes it possible for unauthenticated attackers to authenticate as any user with a phone number registered in the plugin's phone table by submitting an arbitrary OTP code and UID through the Firebase OTP login flow. Successful exploitation requires OTP login to be enabled with Firebase selected as the verification gateway, and requires the attacker to know or guess the target account's registered phone number. Administrator account takeover is possible if an administrator account has a phone number registered in the plugin.

Frequently asked questions

What is CVE-2026-15985?: The Classified Listing - Mobile Number Verification plugin for WordPress is vulnerable to Authentication Bypass in all versions up to, and including, 1.6.0. This is due to missing server-side Firebase OTP validation in the process_otp_login() function. This makes it possible for unauthenticated attackers to authenticate as any user with a phone number registered in the plugin's phone table by submitting an arbitrary OTP code and UID through the Firebase OTP login flow. Successful exploitation requires OTP login to be enabled with Firebase selected as the verification gateway, and requires the attacker to know or guess the target account's registered phone number. Administrator account takeover is possible if an administrator account has a phone number registered in the plugin.
How severe is CVE-2026-15985?: CVE-2026-15985 has a CVSS 3.x base score of 8.1, rated high severity. It is exploitable over network with high attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2026-15985 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (23rd percentile), an estimate of the probability of exploitation in the next 30 days.
How do I fix CVE-2026-15985?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2026-15985 published?: CVE-2026-15985 was published on 2026-08-26.

References

Other CWE-289 vulnerabilities

CVE-2026-76183 — Critical (CVSS 9.8): Authentication Bypass by Alternate Name vulnerability in Apache Tomcat allowed the security constraints for any…
CVE-2026-15980 — Critical (CVSS 9.8): The MyHome Core plugin for WordPress is vulnerable to Authentication Bypass in all versions up to, and including,…
CVE-2026-8457 — Critical (CVSS 9.8): The WooCommerce - Social Login plugin for WordPress is vulnerable to Authentication Bypass in all versions up to and…
CVE-2026-9701 — Critical (CVSS 9.8): The Eventer plugin for WordPress is vulnerable to an insecure password reset mechanism in all versions up to, and…
CVE-2026-24058 — Critical (CVSS 9.8): Soft Serve is a self-hostable Git server for the command line. Versions 0.11.2 and below have a critical authentication…
CVE-2025-13613 — Critical (CVSS 9.8): The Elated Membership plugin for WordPress is vulnerable to Authentication Bypass in all versions up to, and including,…

Browse all CWE-289 vulnerabilities →