CVE-2026-15985
HIGHDescription
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 to fix
No published remediation has been found for this vulnerability's affected products yet.
Mitigation guidance may be in the linked vendor advisories in the References section below.
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CVSS v3 Vector
Exploitability
Impact
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
Exploit Intelligence
Low risk: more likely to be exploited than 25% of all known CVEs.
References
Related Vulnerabilities
Other CWE-289 vulnerabilities, ordered by exploit likelihood. View all
| CVE | Severity | CVSS | EPSS | Exploited | Fix |
|---|---|---|---|---|---|
| CVE-2024-56511 | Critical | 9.8 | 44% | - | Fix |
| CVE-2021-34746 | Critical | 9.8 | 18% | - | Fix |
| CVE-2026-48618 | Medium | 6.5 | 3.2% | - | Fix |
| CVE-2017-16590 | High | 8.8 | 3.0% | - | - |
| CVE-2025-55130 | Critical | 9.1 | 1.7% | - | Fix |
| CVE-2026-44492 | High | 8.6 | 0.9% | - | Fix |
Common questions
How do I fix CVE-2026-15985?
No published fix for CVE-2026-15985 has been found yet. Check the linked vendor advisories for guidance as it becomes available.
Is CVE-2026-15985 being actively exploited?
Not that we know of. CVE-2026-15985 is not in the CISA Known Exploited Vulnerabilities catalog. Its EPSS score of 0.33% is the estimated probability that it will be exploited in the next 30 days. That is higher than 25% of all scored CVEs.
How severe is CVE-2026-15985?
CVE-2026-15985 has a CVSS v3 base score of 8.1, rated high. CVSS rates the technical impact if the vulnerability is exploited, not how likely that is, so weigh it alongside the exploit-prediction score when you decide what to patch first.
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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2026-08-26.