CVE-2026-89213 Llavero.io <= 0.1.4 - Unauthenticated Blind SQLi via 'cill_login' Parameter

High 8.6 Published Updated

Unauthenticated attackers can perform blind SQL injection via the cill_login parameter to read database data in the Llavero.io WordPress plugin.

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-2026-89213?

CVE-2026-89213 is a high-severity SQL injection vulnerability in Unknown Llavero.io, published on 11 Oct 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

The Llavero.io WordPress plugin through 0.1.4 does not properly sanitise and escape a parameter before using it in a SQL statement, which allows unauthenticated attackers to perform SQL injection attacks and read data from the database.

Weakness: CWE-89

Which versions are affected by CVE-2026-89213?

How do I fix CVE-2026-89213?

No fix has been published for CVE-2026-89213 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-2026-89213 being exploited?

There is no known exploitation of CVE-2026-89213 in the wild and no public exploit code.

Sources

Also known as GHSA-4378-6836-v93j.

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