CVE-2026-120988 json
billboard.js before 4.1.3 allows an attacker to execute malicious JavaScript due to improper sanitization of series ids during legend templ…
published 6d ago modified 6d ago also EUVD-2026-115726
- cvss
- 6.1
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.2%
- EPSS 0.2% chance of exploitation in 30 days, percentile 4%
- public exploits
- 0
- none known
Summary
billboard.js before 4.1.3 allows an attacker to execute malicious JavaScript due to improper sanitization of series ids during legend template rendering.
Patch / fix
- NAVER billboard.js 4.1.3
Is CVE-2026-120988 in your stack? 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
- 6d ago
Exploit prediction
0.16% chance of exploitation in the next 30 days, higher than 4% of all scored CVEs (FIRST EPSS, 2026-11-09).
Exploits and checks
- github.com https://github.com/naver/billboard.js/security/advisories/GHSA-g5px-mcqp-3ghp referenced PoC, tagged "exploit" by a source, unverified
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CISA ADP | 3.1 | 6.1 | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N |
| CNA | 3.1 | 6.1 | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N |
Affected products
- NAVER billboard.js
Classification
- Weakness
-
- CWE-79 Improper Neutralization of Input During Web Page Generation
References
Sources
- CVE List CVE-2026-120988
- NVD CVE-2026-120988
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