Stored XSS Vulnerability in Snyk Advisor Platform
CVE-2023-1767

4.3MEDIUM

Key Information:

Vendor

Snyk

Status
Snyk Advisor
Vendor
CVE Published:
20 April 2023

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2023-1767?

The Snyk Advisor platform was vulnerable to a stored XSS attack that allowed malicious actors to embed executable HTML tags within markdown README files of scanned NPM packages. Once such a package was imported into Snyk Advisor, the injected script would execute each time a user accessed the package's health page. This flaw could potentially allow attackers to manipulate user sessions, redirect users, or harvest sensitive information, creating a significant risk to users interacting with affected package pages.

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Deploy the Patch

Affected Version(s)

Snyk Advisor 2020-10-01 < 2023-03-28

Exploit Proof of Concept (PoC)

PoC code is written by security researchers to demonstrate the vulnerability can be exploited. PoC code is also a key component for weaponization which could lead to ransomware.

CVE-2023-1767
Created by weizman

References

https://support.snyk.io/hc/en-us/articles/10146704933405
https://weizman.github.io/2023/04/10/snyk-xss/

CVSS V3.1

Score:
4.3
Severity:
MEDIUM
Confidentiality:
None
Integrity:
Low
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
Required
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

  • 🟡

    Public PoC available

  • 👾

    Exploit known to exist

Credit

Gal Weizman
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