CVE-2025-9910

Description

### Vulnerability in jsondiffpatch Versions of `jsondiffpatch` prior to `0.7.2` are vulnerable to Cross-site Scripting (XSS) in the `HtmlFormatter` (`HtmlFormatter::nodeBegin`). When diffs are rendered to HTML using the built-in formatter, untrusted payloads can inject scripts and execute in the context of a consuming web page. **Affected versions:** >= 0, < 0.7.2 **Patched version:** 0.7.2 **Remediation** Upgrade to `jsondiffpatch` `0.7.2` or later. The fix hardens the HTML formatter to avoid script injection. **Workarounds** Avoid using the HTML formatter on untrusted diffs, or sanitize/escape the rendered output.

How to fix CVE-2025-9910

To remediate CVE-2025-9910, upgrade the affected package to a fixed version below.

• —upgrade to 0.7.2 or later

Is CVE-2025-9910 being exploited?

Low — EPSS is 0.1%, meaning exploitation activity has not been observed at scale.

Affected packages (1)

• from 0, < 0.7.2

CVSS scores

References (8)

• ADVISORYnvd.nist.gov/vuln/detail/CVE-2025-9910
• PATCHgithub.com/benjamine/jsondiffpatch
• WEBbenjamine.github.io/jsondiffpatch/index.html
• WEBgithub.com/benjamine/jsondiffpatch/commit/0e374b5dd8d7879b329a9fc18affbd46ad50dd14