What’s Vulnerable › Vulnerabilities

CVE-2021-36387

• Severity: medium (CVSS 5.4 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.5% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2021-10-14 · updated 2026-06-17
• Weakness: CWE-79

Description

In Yellowfin before 9.6.1 there is a Stored Cross-Site Scripting vulnerability in the video embed functionality exploitable through a specially crafted HTTP POST request to the page "ActivityStreamAjax.i4".

Affected products

• Yellowfinbi Yellowfin: before 9.6.1 — fixed in 9.6.1

How to fix

Upgrade to a fixed version: Yellowfinbi Yellowfin 9.6.1. Check the vendor advisory for mitigations.

References

• http://packetstormsecurity.com/files/164515/Yellowfin-Cross-Site-Scripting-Insecure-Direct-Object-Reference.html
• http://seclists.org/fulldisclosure/2021/Oct/15
• https://cyberaz0r.info/2021/10/yellowfin-multiple-vulnerabilities/
• https://github.com/cyberaz0r/Yellowfin-Multiple-Vulnerabilities/blob/main/README.md
• https://packetstormsecurity.com/files/164515/Yellowfin-Cross-Site-Scripting-Insecure-Direct-Object-Reference.html
• https://wiki.yellowfinbi.com/display/yfcurrent/Release+Notes+for+Yellowfin+9#ReleaseNotesforYellowfin9-Yellowfin9.6
• http://packetstormsecurity.com/files/164515/Yellowfin-Cross-Site-Scripting-Insecure-Direct-Object-Reference.html
• http://seclists.org/fulldisclosure/2021/Oct/15
• https://cyberaz0r.info/2021/10/yellowfin-multiple-vulnerabilities/
• https://github.com/cyberaz0r/Yellowfin-Multiple-Vulnerabilities/blob/main/README.md
• https://packetstormsecurity.com/files/164515/Yellowfin-Cross-Site-Scripting-Insecure-Direct-Object-Reference.html
• https://wiki.yellowfinbi.com/display/yfcurrent/Release+Notes+for+Yellowfin+9#ReleaseNotesforYellowfin9-Yellowfin9.6

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