CVE-2026-28562 wpForo Forum 2.4.14 SQL Injection via Topics ORDER BY Parameter

High 8.8 Published Updated

Unauthenticated attackers can extract database credentials via SQL injection in the wpForo Forum plugin's topic ordering parameter.

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-2026-28562?

CVE-2026-28562 is a high-severity SQL injection vulnerability in gVectors Team wpForo Forum, published on 28 Feb 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

wpForo 2.4.14 contains an unauthenticated SQL injection vulnerability in Topics::get_topics() where the ORDER BY clause relies on ineffective esc_sql() sanitization on unquoted identifiers. Attackers exploit the wpfob parameter with CASE WHEN payloads to perform blind boolean extraction of credentials from the WordPress database.

Weakness: CWE-89

Which versions are affected by CVE-2026-28562?

It affects 1 product.

Products include Gvectors Wpforo Forum.

How do I fix CVE-2026-28562?

No fix has been published for CVE-2026-28562 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-2026-28562 being exploited?

There is no known exploitation of CVE-2026-28562 in the wild and no public exploit code.

Sources

Also known as GHSA-fm3m-r2wp-895q.

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