Quick answers
- Is CVE-2026-66921 exploited in the wild?
- No. Junglewise Threat Intelligence has no report of CVE-2026-66921 being exploited in the wild.
- How severe is CVE-2026-66921?
- Informational severity, with a CVSS score of 6.3, published 28 July 2026.
- Which products and versions are affected?
- Pivotick <= 1.4.0.
- Is there a fix for CVE-2026-66921?
- 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-2026-66921 attacked?
- It is attacked over the network, in a web application.
- Am I affected by CVE-2026-66921?
- Check whether you run Pivotick 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
A Cross-Site Scripting (XSS) vulnerability exists in Pivotick's Markdown node-reference renderer due to improper neutralization of the 'nodeName' value. The node-reference tokenizer failed to escape HTML metacharacters such as quotation marks and angle brackets, allowing an attacker to terminate attributes or inject arbitrary HTML elements and event handlers. If the rendered content is processed by a consumer without secondary sanitization (like DOMPurify), arbitrary JavaScript can execute in the victim's browser context. The vulnerability is addressed in commit 4c13ff2 by implementing a context-aware escaping function that handles ampersands, angle brackets, and quotes.
Affected products
- Pivotick Pivotick <= 1.4.0
Timeline
- 2026-07-28: disclosed
- 2026-07-28: advisory