Information disclosure in Vue.js Devtools
CVE-2023-5718
The Vue.js Devtools extension was found to leak screenshot data back to a malicious web page via the standard `postMessage()` API. By creating a malicious web page with an iFrame targeting a sensitive resource (i.e. a locally accessible file or sensitive website), and registering a listener on the web page, the extension sent messages back to the listener, containing the base64 encoded screenshot data of the sensitive resource.
Vulnerability class: Information Disclosure
EPSS: 0.002 (16.3th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 4.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N.
Affected products
- Vue.js Devtools — versions < 6.5.1
- Vuejs Devtools — versions 6.5.0
Weakness classification (CWE)
References
- report@snyk.io (Exploit, Patch, Third Party Advisory)
Frequently asked questions
- What is CVE-2023-5718?
- CVE-2023-5718 is a medium-severity vulnerability in Vue.js Devtools, classified under Information Disclosure. CVSS score: 4.3/10. Published 2023-10-23.
- How severe is CVE-2023-5718?
- Medium severity. CVSS v3 base score is 4.3 out of 10.