Quick answers
- Is CVE-2026-17037 exploited in the wild?
- No. Junglewise Threat Intelligence has no report of CVE-2026-17037 being exploited in the wild.
- How severe is CVE-2026-17037?
- High severity, with a CVSS score of 7.2, published 11 September 2026.
- Which products and versions are affected?
- Kirki Freeform Page Builder up to 6.2.0.
- Is there a fix for CVE-2026-17037?
- 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-2026-17037 attacked?
- It is attacked over the network.
- Am I affected by CVE-2026-17037?
- Check whether you run Kirki Freeform Page Builder 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 Stored Cross-Site Scripting (XSS) flaw in the 'comment' parameter that affects Kirki versions up to and including 6.2.0. The plugin fails to properly sanitize input and escape output when handling the comment parameter, allowing unauthenticated attackers to inject arbitrary web scripts. Since the malicious payload is stored in the database, it will execute in the context of any user who accesses the affected page, making this a high-impact vulnerability. The attack requires no authentication and is network-accessible through normal plugin functionality.
Affected products
- Kirki Freeform Page Builder up to 6.2.0
Timeline
- 2026-09-11: disclosed