CVE-2025-9910 json
jsondiffpatch is vulnerable to Cross-site Scripting (XSS) via HtmlFormatter::nodeBegin
published last yr. modified 21d ago also GHSA-33vc-wfww-vjfv , EUVD-2025-27629
- cvss
- 4.7
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.3%
- EPSS 0.3% chance of exploitation in 30 days, percentile 24%
- public exploits
- 0
- none known
Summary
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.
Patch / fix
Is CVE-2025-9910 in your dependencies? Fencer shows which of your repositories are affected as soon as an advisory lands, and opens the fix as a pull request.
Check with FencerCISA SSVC
- Exploitation
- Proof of concept is public
- Automatable
- no
- Technical impact
- partial
- Assessed
- last yr.
Exploit prediction
0.32% chance of exploitation in the next 30 days, higher than 24% of all scored CVEs (FIRST EPSS, 2026-11-09).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 4.0 | 2.3 | CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:P/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N/E:P |
| CNA | 3.1 | 4.7 | CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:L/I:L/A:N/E:P |
| CNA | 4.0 | 1.3 | CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:P/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X |
| CNA | 3.1 | 4.7 | CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:L/I:L/A:N |
| GitHub | 3.1 | 4.7 | CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:L/I:L/A:N |
Affected packages
| ecosystem | package | affected | fixed in |
|---|---|---|---|
| npm | jsondiffpatch | <0.7.2 |
0.7.2 |
Affected products
- n/a jsondiffpatch
- n/a org.webjars.npm:jsondiffpatch
- n/a org.webjars.bower:jsondiffpatch
Classification
- Weakness
-
- CWE-79 Improper Neutralization of Input During Web Page Generation
References
-
github.com
/benjamine/jsondiffpatch/commit/0e374b5dd8d7879b329a9fc18affbd46ad50dd14
web
-
security.snyk.io
/vuln/SNYK-JS-JSONDIFFPATCH-10369031
web
-
security.snyk.io
/vuln/SNYK-JAVA-ORGWEBJARSNPM-12549276
web
-
security.snyk.io
/vuln/SNYK-JAVA-ORGWEBJARSBOWER-12549277
web
-
github.com
/benjamine/jsondiffpatch/issues/383
web
-
benjamine.github.io
/jsondiffpatch/index.html
web
-
nvd.nist.gov
/vuln/detail/CVE-2025-9910
advisory
-
github.com
/benjamine/jsondiffpatch
package
Sources
- CVE List CVE-2025-9910
- GitHub Advisory GHSA-33vc-wfww-vjfv
- NVD CVE-2025-9910
Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.