PT-2023-15879 · Classlink · Classlink Oneclick Extension

James Connolly · Published 2023-10-16 · Updated 2024-01-23 · CVE-2022-48612

Positive Technologies (AI Summary)

CVSS v3.1

6.1

Medium

Base vector

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

Name of the Vulnerable Software and Affected Versions ClassLink OneClick Extension versions through 10.7

Description A Universal Cross Site Scripting (UXSS) issue allows remote attackers to inject JavaScript into any webpage. This is because a regular expression, which validates whether a URL is controlled by ClassLink, is not present in all applicable places.

Recommendations For ClassLink OneClick Extension versions through 10.7, update to a version that includes the necessary regular expression validation to prevent JavaScript injection. At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Exploit

XSS

Weakness Enumeration

CWE-79

Related Identifiers

CVE-2022-48612

Affected Products

Classlink Oneclick Extension

References · 5

• 🔥 https://blog.zerdle.net/classlink · Exploit
• https://nvd.nist.gov/vuln/detail/CVE-2022-48612 · Security Note
• https://osv.dev/vulnerability/CVE-2022-48612 · Vendor Advisory
• https://t.me/cvenotify/68391 · Telegram Post
• https://t.me/cibsecurity/72299 · Telegram Post