CVE-2022-48612

Name: CVE-2022-48612
Creator: NVD / NIST
Published: 2023-10-16T00:15:10.35+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 6.1/10EPSS 0.43%

Last modified Jun 17, 2026

CVE-2022-48612 is a medium-severity vulnerability rated 6.1/10 on the CVSS scale. A Universal Cross Site Scripting (UXSS) vulnerability in ClassLink OneClick Extension through 10.7 allows remote attackers to inject JavaScript into any webpage, because a regular expression (validating whether a URL is controlled by ClassLink) is not present in all applicable places.. EPSS estimates a 0.43% chance of exploitation in the next 30 days.

Description

A Universal Cross Site Scripting (UXSS) vulnerability in ClassLink OneClick Extension through 10.7 allows remote attackers to inject JavaScript into any webpage, because a regular expression (validating whether a URL is controlled by ClassLink) is not present in all applicable places.

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

0.43%

34.7th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-79

Affected Software

Vendor	Product	Versions
Classlink	Oneclick	<= 10.7

References

https://blog.zerdle.net/classlink/Exploit, Third Party Advisory
https://blog.zerdle.net/classlink/Exploit, Third Party Advisory

Timeline

Published: Oct 16, 2023
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2022-48612?

How severe is CVE-2022-48612?

CVE-2022-48612 has a CVSS score of 6.1/10 (MEDIUM severity). The EPSS model estimates a 0.43% probability of exploitation in the next 30 days.

How do I fix CVE-2022-48612?

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.

Are you affected by CVE-2022-48612?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST