Quick answers
- Is CVE-2026-66629 exploited in the wild?
- No. Junglewise Threat Intelligence has no report of CVE-2026-66629 being exploited in the wild.
- How severe is CVE-2026-66629?
- High severity, with a CVSS score of 7.1, published 18 August 2026.
- Which products and versions are affected?
- Kirki Kirki <=6.2.4.
- Is there a fix for CVE-2026-66629?
- A patch was published on 2026-08-18: Patched in version 6.2.5 Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
- How is CVE-2026-66629 attacked?
- It is attacked over the network, in a software library.
- Am I affected by CVE-2026-66629?
- Check whether anything you run is named in the advisory. 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
This is a reflected or stored cross-site scripting (XSS) vulnerability in Kirki versions 6.2.4 and earlier. The vulnerability exists because user-controlled input is not properly sanitized or escaped before being rendered in the browser. An unauthenticated attacker can inject malicious scripts through a crafted link or form submission, which execute with the privileges of the visiting user. Successful exploitation can lead to session hijacking, credential theft, or redirection to malicious sites. The vulnerability has been patched in version 6.2.5 and later; users should update immediately.
Affected products
- Kirki Kirki <=6.2.4
Timeline
- 2026-08-18: disclosed
- 2026-08-18: patched: Patched in version 6.2.5