Quick answers
- Is CVE-2026-12793 exploited in the wild?
- No. Junglewise Threat Intelligence has no report of CVE-2026-12793 being exploited in the wild.
- How severe is CVE-2026-12793?
- Critical severity, with a CVSS score of 9.8, published 16 September 2026.
- Which products and versions are affected?
- Crocoblock JetFormBuilder up to and including 3.6.2.
- Is there a fix for CVE-2026-12793?
- 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-2026-12793 attacked?
- It is attacked over the network, in a software library.
- Am I affected by CVE-2026-12793?
- Check whether you run Crocoblock JetFormBuilder 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
The vulnerability is a privilege escalation flaw in JetFormBuilder versions up to and including 3.6.2. The plugin fails to validate that a submitted form ID actually belongs to a JetFormBuilder form before parsing the referenced post's content as form schema and executing an Advanced Validation server-side callback. An unauthenticated attacker can exploit this by submitting a malicious form request that leverages the unvalidated form ID to trigger arbitrary form schema parsing and callback execution. This allows the attacker to create an administrator-level user account without authentication. The vulnerability is network-accessible and requires no user interaction beyond a single attacker-controlled request.
Affected products
- Crocoblock JetFormBuilder up to and including 3.6.2
Timeline
- 2026-09-16: disclosed