CVE-2026-57687 WordPress Custom Field Template plugin <= 2.7.8 - SQL Injection vulnerability
A contributor can exploit SQL injection in the Custom Field Template plugin to read or modify database contents.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-57687?
CVE-2026-57687 is a high-severity SQL injection vulnerability in Hiroaki Miyashita Custom Field Template, published on 2 Jul 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
Contributor SQL Injection in Custom Field Template <= 2.7.8 versions.
Weakness: CWE-89
Which versions are affected by CVE-2026-57687?
How do I fix CVE-2026-57687?
No fix has been published for CVE-2026-57687 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-2026-57687 being exploited?
There is no known exploitation of CVE-2026-57687 in the wild and no public exploit code.
Sources
Also known as GHSA-3jm7-hr4j-gx2m.