Quick answers
- Is CVE-2026-100184 exploited in the wild?
- No. Junglewise Threat Intelligence has no report of CVE-2026-100184 being exploited in the wild.
- How severe is CVE-2026-100184?
- Medium severity, with a CVSS score of 4.7, published 1 October 2026.
- Which products and versions are affected?
- Calculated Fields Form up to and including 5.5.1.3.
- Is there a fix for CVE-2026-100184?
- 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-2026-100184 attacked?
- It is attacked over the network, in a web application.
- Am I affected by CVE-2026-100184?
- Check whether you run Calculated Fields Form 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 plugin is vulnerable to reflected DOM-based XSS via the 'x' parameter (where x is an attacker-chosen name matching the form's url.<name> predefined value) due to insufficient input sanitization and output escaping. The vulnerability requires a Text Area field configured with a 'url.<name>' Predefined Value and predefinedClick disabled, which is a standard feature. Exploitation is unauthenticated and requires social engineering to trick a user into clicking a malicious link.
Affected products
- Calculated Fields Form Calculated Fields Form up to and including 5.5.1.3
Timeline
- 2026-10-01: disclosed