CVE-2025-9910

Severity: medium (CVSS 4.7 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.3% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2025-09-11 · updated 2026-10-19
Weakness: CWE-79

Description

Versions of the package jsondiffpatch before 0.7.2 are vulnerable to Cross-site Scripting (XSS) via HtmlFormatter::nodeBegin. An attacker can inject malicious scripts into HTML payloads that may lead to code execution if untrusted payloads were used as source for the diff, and the result renderer using the built-in html formatter on a private website.

Affected products

jsondiffpatch: before 0.7.2 — fixed in 0.7.2
org.webjars.bower:jsondiffpatch: all versions
org.webjars.npm:jsondiffpatch: all versions

How to fix

Upgrade to a fixed version: jsondiffpatch 0.7.2. Check the vendor advisory for mitigations.

References

https://benjamine.github.io/jsondiffpatch/index.html
https://github.com/benjamine/jsondiffpatch/commit/0e374b5dd8d7879b329a9fc18affbd46ad50dd14
https://github.com/benjamine/jsondiffpatch/issues/383
https://security.snyk.io/vuln/SNYK-JAVA-ORGWEBJARSBOWER-12549277
https://security.snyk.io/vuln/SNYK-JAVA-ORGWEBJARSNPM-12549276
https://security.snyk.io/vuln/SNYK-JS-JSONDIFFPATCH-10369031

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