What’s Vulnerable › Vulnerabilities

CVE-2021-35491

• Severity: high (CVSS 8.1 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.9% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2021-10-05 · updated 2026-06-17
• Weakness: CWE-352

Description

A Cross-Site Request Forgery (CSRF) vulnerability in Wowza Streaming Engine through 4.8.11+5 allows a remote attacker to delete a user account via the /enginemanager/server/user/delete.htm userName parameter. The application does not implement a CSRF token for the GET request. This issue was resolved in Wowza Streaming Engine release 4.8.14.

Affected products

• Wowza Streaming Engine: before 4.8.14 — fixed in 4.8.14

How to fix

Upgrade to a fixed version: Wowza Streaming Engine 4.8.14. Check the vendor advisory for mitigations.

References

• https://n4nj0.github.io/advisories/wowza-streaming-engine-i/
• https://www.gruppotim.it/redteam
• https://www.wowza.com/docs/wowza-streaming-engine-4-8-14-release-notes
• https://n4nj0.github.io/advisories/wowza-streaming-engine-i/
• https://www.gruppotim.it/redteam
• https://www.wowza.com/docs/wowza-streaming-engine-4-8-14-release-notes

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