CVE-2021-36387

Name: CVE-2021-36387
Creator: NVD / NIST
Published: 2021-10-14T19:15:09.18+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 5.4/10EPSS 1.44%

Last modified Jun 17, 2026

CVE-2021-36387 is a medium-severity vulnerability rated 5.4/10 on the CVSS scale. 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".. EPSS estimates a 1.44% chance of exploitation in the next 30 days.

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".

Metrics

CVSS 3.1

5.4/10

CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N

EPSS Probability

1.44%

69.8th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Yellowfinbi	Yellowfin	< 9.6.1

References

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

Timeline

Published: Oct 14, 2021
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2021-36387?

How severe is CVE-2021-36387?

CVE-2021-36387 has a CVSS score of 5.4/10 (MEDIUM severity). The EPSS model estimates a 1.44% probability of exploitation in the next 30 days.

How do I fix CVE-2021-36387?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2021-36387?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST