CVE-2021-30650

Severity: medium (CVSS 6.1 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.7% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2022-02-18 · updated 2026-06-17
Weakness: CWE-79

Description

A reflected cross-site scripting (XSS) vulnerability in the Symantec Layer7 API Management OAuth Toolkit (OTK) allows a remote attacker to craft a malicious URL for the OTK web UI and target OTK users with phishing attacks or other social engineering techniques. A successful attack allows injecting malicious code into the OTK web UI client application.

Affected products

Layer7 API Management OAuth Toolkit (OTK): before 4.4.1 — fixed in 4.4.1

How to fix

Upgrade to a fixed version: Layer7 API Management OAuth Toolkit (OTK) 4.4.1. Check the vendor advisory for mitigations.

References

https://support.broadcom.com/web/ecx/support-content-notification/-/external/content/SecurityAdvisories/CVE-2021-30650-Layer7-OAuth-Toolkit-OTK-/20170
https://support.broadcom.com/web/ecx/support-content-notification/-/external/content/SecurityAdvisories/CVE-2021-30650-Layer7-OAuth-Toolkit-OTK-/20170

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