Quick answers
- Is CVE-2026-100894 exploited in the wild?
- No. Junglewise Threat Intelligence has no report of CVE-2026-100894 being exploited in the wild.
- How severe is CVE-2026-100894?
- Medium severity, with a CVSS score of 6.3, published 28 September 2026.
- Which products and versions are affected?
- Mathurvishal CloudClassroom PHP Project 1.0 and prior.
- Is there a fix for CVE-2026-100894?
- No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.
- How is CVE-2026-100894 attacked?
- It is attacked over the network.
- Am I affected by CVE-2026-100894?
- Check whether you run Mathurvishal CloudClassroom PHP Project at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.
Technical details
A SQL injection vulnerability exists in the updateguest.php file where the gname parameter is concatenated directly into SQL queries without sanitization or prepared statements. An authenticated attacker can send a crafted POST request to /updateguest.php with a malicious gname payload to execute arbitrary SQL commands, enabling database enumeration, credential extraction, and data exfiltration. No official fix is currently available from the vendor.
Affected products
- mathurvishal CloudClassroom-PHP-Project 1.0 and prior
Timeline
- 2026-03-08: disclosed
- 2026-09-28: advisory