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Medium, CVSS 4.2

vue-template-compiler vulnerable to client-side Cross-Site Scripting (XSS)

CVE-2024-6783GHSA-g3ch-rx76-35fx

What to do

Vendor response not established. Follow the primary source's mitigation guidance and check back for a fix.

This page has no inventory attached, so it cannot say whether you are affected. A vendor fix is not proof that your deployment is fixed.

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Affected packages

  • npm vue-template-compiler

    Affected
    >= 2.0.0
    Fixed in
    no fixed version recorded

Sources

Severity and exploitation
Exploitation
No confirmed exploitation recorded. Patch Next marks exploitation only from CISA KEV.
CVSS
4.2 · CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:N
EPSS
  • CVE-2024-6783: 0.51% estimated exploitation activity in the next 30 days; percentile 43.29 (FIRST EPSS, 2026-11-03). This is a model estimate, not proof of exploitation or customer exposure.
Source description

As published by the source; long descriptions are shortened.

A vulnerability has been discovered in vue-template-compiler, 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. Vue 2 has reached End-of-Life. This vulnerability has been patched in Vue 3.

Dates and revisions
Published by the source
Last modified by the source
Source last checked
  1. Revision 1 · created ·

    Published from osv record GHSA-g3ch-rx76-35fx

Agent brief

Preview the exact text before you copy it. Commands are read-only suggestions; review them before running anything.

# Patch Next advisory brief: CVE-2024-6783

Advisory: vue-template-compiler vulnerable to client-side Cross-Site Scripting (XSS)
IDs: CVE-2024-6783, GHSA-g3ch-rx76-35fx
Record: https://patchnext.com/advisories/cve-2024-6783 (revision 1, source checked 24 Oct 2026, 04:13 UTC)
Inventory: none attached. This brief comes from a public page and does not say whether any deployment is affected.
Severity: Medium (CVSS 4.2)
Exploitation: no confirmed exploitation recorded. Patch Next confirms exploitation only from CISA KEV.
Vendor response: Vendor response not established. A vendor fix does not mean a deployment is fixed.

## Affected components
- npm vue-template-compiler: affected >= 2.0.0

## Suggested inspection (read-only)
- `npm ls vue-template-compiler --all`: lists every installed copy and version, including transitive ones. Run in the project root after `npm ci`.

## Supported action
No complete vendor fix is recorded. Follow the primary source's mitigation guidance and check this record again before closing anything.

## Required regression checks
- Run the test suite and a production build.
- Exercise the features that depend on vue-template-compiler.
- Repeat the inspection and confirm that only fixed versions remain installed.

## Rollback considerations
- Keep the previous lockfile and deployment artifact. Rolling back reinstates the vulnerable version, so apply any documented mitigation while you fix forward.

## Unresolved questions
- Which deployments run an affected version?
- Exploitation status can change. Check again before lowering the priority.
- Mark the work resolved only after the fixed version is verified in production.

## Sources
- Verified: https://osv.dev/vulnerability/GHSA-g3ch-rx76-35fx (OSV record GHSA-g3ch-rx76-35fx lists affected ranges: npm vue-template-compiler >=2.0.0)

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