Quick answers
- Is CVE-2026-124253 exploited in the wild?
- No. Junglewise Threat Intelligence has no report of CVE-2026-124253 being exploited in the wild.
- How severe is CVE-2026-124253?
- High severity, with a CVSS score of 7.1, published 11 November 2026.
- Which products and versions are affected?
- CodePeople Calculated Fields Form through 5.5.2.8.
- Is there a fix for CVE-2026-124253?
- Yes: fixed in 5.5.2.9. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
- How is CVE-2026-124253 attacked?
- It is attacked over the network, in a web application.
- Am I affected by CVE-2026-124253?
- Check whether you run CodePeople 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.
How to fix
- Fixed in: 5.5.2.9
Technical details
This is a DOM-based XSS vulnerability in the calculated-fields-form plugin where user input is not properly sanitized during web page generation. The vulnerability requires user interaction (a privileged user must click a malicious link or visit a crafted page) but affects all versions through 5.5.2.8. An attacker can inject arbitrary JavaScript that executes in the context of the victim's browser.
Affected products
- codepeople Calculated Fields Form through 5.5.2.8
Timeline
- 2026-11-04: disclosed
- 2026-11-09: advisory
- 2026-11-09: patched