CVE-2023-41049: @dcl/single-sign-on-client is an open source npm library which deals with single sign on authentication flows. Improper input validation in the `init`...

Description

@dcl/single-sign-on-client is an open source npm library which deals with single sign on authentication flows. Improper input validation in the `init` function allows arbitrary javascript to be executed using the `javascript:` prefix. This vulnerability has been patched on version `0.1.0`. Users are advised to upgrade. Users unable to upgrade should limit untrusted user input to the `init` function.

Metrics

CVSS 3.1

6.1/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

EPSS Probability

0.40%

31.7th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Decentraland	Single Sign On Client	< 0.1.0

References

Timeline

Published: Sep 1, 2023
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2023-41049?

@dcl/single-sign-on-client is an open source npm library which deals with single sign on authentication flows. Improper input validation in the `init` function allows arbitrary javascript to be executed using the `javascript:` prefix. This vulnerability has been patched on version `0.1.0`. Users are advised to upgrade. Users unable to upgrade should limit untrusted user input to the `init` function.

How severe is CVE-2023-41049?

CVE-2023-41049 has a CVSS score of 6.1/10 (MEDIUM severity). The EPSS model estimates a 0.40% probability of exploitation in the next 30 days.

How do I fix CVE-2023-41049?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.