CVE-2026-5543 PHPGurukul User Registration & Login and User Management System yesterday-reg-users.php sql injection
SQL injection in the admin panel allows remote attackers to manipulate database queries via the ID parameter.
- 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-2026-5543?
CVE-2026-5543 is a medium-severity SQL injection vulnerability in PHPGurukul User Registration & Login and User Management System, published on 5 Apr 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
A vulnerability was identified in PHPGurukul User Registration & Login and User Management System 3.3. The affected element is an unknown function of the file /admin/yesterday-reg-users.php. The manipulation of the argument ID leads to sql injection. Remote exploitation of the attack is possible. The exploit is publicly available and might be used.
Which versions are affected by CVE-2026-5543?
How do I fix CVE-2026-5543?
No fix has been published for CVE-2026-5543 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-2026-5543 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-5543 exists.
Sources
Also known as GHSA-xhx8-v4wm-937m.