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
Published · last modified .
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.
EPSS exploit prediction
EPSS: 0.002 (14.5th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 14th percentile — 14.5% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.002 · newest: 0.002 · change: 0.000
Affected products
- Vue.js Devtools — versions < 6.5.1
- Vuejs Devtools — versions 6.5.0
Weakness classification (CWE)
References
- gist.github.com/CalumHutton/bdb97077a66021ed455f87823cd7c7cb (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.