# CVE-2024-6783: Vue client-side XSS via prototype pollution

- Exploited (CISA KEV): no
- Published: 2024-07-23
- CVSS: 4.8 MEDIUM (v3.1)
- EPSS: 0.5% (43th percentile)
- CWE: CWE-79

A vulnerability has been discovered in Vue, that allows an attacker to perform XSS via prototype pollution. The attacker could change the prototype chain of some properties such as `Object.prototype.staticClass` or `Object.prototype.staticStyle` to execute arbitrary JavaScript code.

## Edge WAF coverage (claimed by vendors, not measured)

| Vendor | Status | First rule | Days after publication |
|---|---|---|---|
| Cloudflare | Before feed history | — | — |
| AWS | No public claim | — | — |
| Microsoft Azure | No public claim | — | — |
| Google Cloud | No public claim | — | — |
| Fastly | Before feed history | — | — |
| F5 | Rule published | 2024-08-13 | 21 |
| Akamai | No public source | — | — |
| OWASP CRS | No public claim | — | — |

### F5

- 2024-08-13 · new · rule 200101880
  > Added: signature 200101880 "Vue.js XSS Prototype Pollution" (Cross Site Scripting (XSS), risk Medium), systems: System Independent. References: CVE-2024-6783.
  Source: https://docs.cloud.f5.com/docs-v2/platform/changelogs/security-details-changelog
- 2024-09-17 · updated · rule 200101880
  > Updated: signature 200101880 "Vue.js XSS Prototype Pollution" (Cross Site Scripting (XSS), risk Medium), systems: System Independent. References: CVE-2024-6783.
  Source: https://docs.cloud.f5.com/docs-v2/platform/changelogs/security-details-changelog

"No public claim" means no vendor statement names this CVE; "Before feed history" means the CVE is older than the vendor feed. In both cases generic rules may still block it.

HTML: https://cve.vigilbase.com/cve/CVE-2024-6783 · JSON: https://cve.vigilbase.com/api/v1/cves/CVE-2024-6783