What is CVE-2023-1767?

CVE-2023-1767 is a medium-severity vulnerability in Snyk Advisor, classified under Cross-site Scripting. CVSS score: 4.3/10. Published 2023-04-20.

How severe is CVE-2023-1767?

Medium severity. CVSS v3 base score is 4.3 out of 10.

Is CVE-2023-1767 known to be exploited?

3 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

XSS in Snyk Advisor

CVE-2023-1767

The Snyk Advisor website (https://snyk.io/advisor/) was vulnerable to a stored XSS prior to 28th March 2023. A feature of Snyk Advisor is to display the contents of a scanned package's Readme on its package health page. An attacker could create a package in NPM with an associated markdown README file containing XSS-able HTML tags. Upon Snyk Advisor importing the package, the XSS would run each time an end user browsed to the package's page on Snyk Advisor.

Vulnerability class: XSS (Cross-Site Scripting)

EPSS: 0.005 (40.7th 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:N/I:L/A:N.

Affected products

Snyk Advisor
Snyk Advisor — versions 2020-10-01

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

Public proof-of-concept exploits

References

report@snyk.io (Vendor Advisory)
report@snyk.io (Exploit, Third Party Advisory)

Frequently asked questions

What is CVE-2023-1767?: CVE-2023-1767 is a medium-severity vulnerability in Snyk Advisor, classified under Cross-site Scripting. CVSS score: 4.3/10. Published 2023-04-20.
How severe is CVE-2023-1767?: Medium severity. CVSS v3 base score is 4.3 out of 10.
Is CVE-2023-1767 known to be exploited?: 3 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.