CVE-2026-81420 Tcard WP <= 1.8.0 - Unauthenticated SQLi via group_id Parameter
Unauthenticated attackers can execute SQL injection via the group_id parameter in the Tcard WP WordPress plugin, potentially accessing 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-2026-81420?
CVE-2026-81420 is a high-severity SQL injection vulnerability in Unknown Tcard WP, 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 Tcard WP WordPress plugin through 1.8.0 does not sanitise and escape a parameter before using it in a SQL statement in one of its unauthenticated AJAX actions, allowing unauthenticated users to perform SQL injection attacks.
Weakness: CWE-89
Which versions are affected by CVE-2026-81420?
How do I fix CVE-2026-81420?
No fix has been published for CVE-2026-81420 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-2026-81420 being exploited?
There is no known exploitation of CVE-2026-81420 in the wild and no public exploit code.
Sources
Also known as GHSA-64x7-jjvh-w54w.