What’s Vulnerable › Vulnerabilities

CVE-2023-45889

• Severity: medium (CVSS 6.1 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.4% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2024-01-23 · updated 2026-06-17
• Weakness: CWE-79

Description

A Universal Cross Site Scripting (UXSS) vulnerability in ClassLink OneClick Extension through 10.8 allows remote attackers to inject JavaScript into any webpage. NOTE: this issue exists because of an incomplete fix for CVE-2022-48612.

Affected products

• Classlink Oneclick: through 10.8

References

• https://blog.zerdle.net/classlink/
• https://blog.zerdle.net/classlink2/
• https://blog.zerdle.net/classlink/
• https://blog.zerdle.net/classlink2/

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