CVE-2025-11177 External Login <= 1.11.2 - Unauthenticated SQL Injection via log

High 7.5 Published Updated

Unauthenticated attackers can extract sensitive database information via SQL injection in the External Login WordPress plugin when using PostgreSQL or MSSQL.

Exploited in the wild
Not known
Login needed
Not needed
Attackable
Over the internet
Victim action needed
Not needed
Fix
None listed

What is CVE-2025-11177?

CVE-2025-11177 is a high-severity SQL injection vulnerability in tbenyon External Login, published on 15 Oct 2025. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

The External Login plugin for WordPress is vulnerable to SQL Injection via the 'log' parameter in all versions up to, and including, 1.11.2 due to insufficient escaping on the user supplied parameter and lack of sufficient preparation on the existing SQL query. This makes it possible for unauthenticated attackers to append additional SQL queries into already existing queries that can be used to extract sensitive information from the database when a PostgreSQL or MSSQL database is configured as the external authentication database.

Weakness: CWE-89

Which versions are affected by CVE-2025-11177?

How do I fix CVE-2025-11177?

No fix has been published for CVE-2025-11177 yet. Limit exposure of the affected software until one is available.

Use parameterised queries everywhere and never build SQL by joining strings. Upgrade affected software first; a web application firewall only buys time. More about SQL injection.

Is CVE-2025-11177 being exploited?

There is no known exploitation of CVE-2025-11177 in the wild and no public exploit code.

Public exploit code: 1 proofs of concept on GitHub.

Sources

Also known as GHSA-2gwg-q3xj-cx98.

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