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TI-2023-01660 Aliases CVE-2023-1767GHSA-66mg-wfxj-x3xv

Cross-site scripting in Snyk Advisor

Priority MEDIUM 58CWE-79Published · Updated

Key facts

Attack vector
Network
Privileges required
Low
User interaction
Required
Attack complexity
Low
Impact type
Cross-site scripting
Confidentiality · integrity · availability
Low · Low · None
Fix status
Fixed

Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-79.

Summary

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.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.00513 43rd percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix Fixed Snyk Advisor (Snyk): 2023-03-28

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
Poc
Automatable
No
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
SnykSnyk Advisor2020-10-01 to before 2023-03-282023-03-28Patch availableCNA
  • Snyk Advisor VendorSnyk Affected 2020-10-01 to before 2023-03-28 Fixed in 2023-03-28 Patch available CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:snyk:advisor:*:*:*:*:*:*:*:*before 2023-03-28VulnerableSnyk
  • cpe:2.3:a:snyk:advisor:*:*:*:*:*:*:*:* Versions before 2023-03-28 Vulnerable ·Snyk

Remediation

  • Fix · CNA Snyk Advisor (Snyk) Fixed in 2023-03-28

Timeline

  1. 2026-10-02 Threatist record created from CVE-2023-1767
  2. 2026-10-03 Alias added: GHSA-66mg-wfxj-x3xv

References

Exploit 1

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences