CVE-2026-65520 WordPress WP OAuth Server plugin <= 6.2.0 - SQL Injection vulnerability

Critical 9.3 Published Updated

Unauthenticated attackers can execute arbitrary SQL commands via the WP OAuth Server plugin, potentially reading or modifying database contents.

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-2026-65520?

CVE-2026-65520 is a critical SQL injection vulnerability in miniOrange WP OAuth Server, published on 6 Aug 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

Unauthenticated SQL Injection in WP OAuth Server <= 6.2.0 versions.

Weakness: CWE-89

Which versions are affected by CVE-2026-65520?

How do I fix CVE-2026-65520?

No fix has been published for CVE-2026-65520 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-2026-65520 being exploited?

There is no known exploitation of CVE-2026-65520 in the wild and no public exploit code.

Sources

Also known as GHSA-75cj-86wv-m74j.

Is CVE-2026-65520 in your software?

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