# CVE-2025-49223: billboard.js allows prototype pollution via the function generate

> Prototype pollution in billboard.js allows attackers to execute arbitrary code or cause denial of service by injecting properties.

- **Severity:** Critical 9.8 (`CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** Yes
- **Published:** 4 Jun 2025
- **Updated:** 4 Jun 2025
- **Also known as:** GHSA-65p9-j6pg-72hj, UBUNTU-CVE-2025-49223

## What is CVE-2025-49223?

CVE-2025-49223 is a critical code injection vulnerability in NAVER billboard.js, published on 4 Jun 2025. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

billboard.js before 3.15.1 was discovered to contain a prototype pollution via the function generate, which could allow attackers to execute arbitrary code or cause a Denial of Service (DoS) via injecting arbitrary properties.

Weakness: CWE-1321 (Improperly Controlled Modification of Object Prototype Attributes)

## Which versions are affected by CVE-2025-49223?

2 open source packages ship an affected version, including billboard.js. It affects 1 product.


| Package | Ecosystem | Affected | Fixed in |
| --- | --- | --- | --- |
| `billboard.js` | npm | All versions | 3.15.1 |
| `billboard.js` | npm | All versions | 3.15.1 |

Products: Naver Billboard.js.

## How do I fix CVE-2025-49223?

Upgrade billboard.js to 3.15.1 or later.

## Is CVE-2025-49223 being exploited?

There is no known exploitation of CVE-2025-49223 in the wild and no public exploit code.

Public exploit code:

- CVE-2025-49223 - Prototype Pollution in Billboard.js (github_poc): https://github.com/louay-075/CVE-2025-49223-BillboardJS-PoC

## Other vulnerabilities in NAVER billboard.js

- [CVE-2026-1513](https://insights.sbomify.com/CVE-2026-1513/): billboard.js is vulnerable to XSS during chart option binding (medium 6.1)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2025-49223 and fix it if it is affected.

What it is: CVE-2025-49223 is a critical code injection vulnerability in NAVER billboard.js, published on 4 Jun 2025. An attacker can exploit it over the internet without logging in, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2025-49223 in the wild and no public exploit code.

Affected packages and fixed versions:
- billboard.js (npm): affected all versions; fixed in 3.15.1
- billboard.js (npm): affected all versions; fixed in 3.15.1

Task:
1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.
2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.
3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.
4. Run the tests and summarise what changed and why.
5. If nothing in the project is affected, say so and change nothing.

Reference: https://insights.sbomify.com/CVE-2025-49223/ (Markdown: https://insights.sbomify.com/CVE-2025-49223/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2025-49223
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2025-49223
- OSV: https://osv.dev/vulnerability/CVE-2025-49223

---
From sbomify Insights: https://insights.sbomify.com/CVE-2025-49223/
Summaries are generated and may contain mistakes; the official description above is the record.