CVE-2021-36387
CVE-2021-36387 is a medium-severity vulnerability in Yellowfinbi Yellowfin with a CVSS 3.x base score of 5.4. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-79.
Key facts
- Severity: Medium (CVSS 3.x base score 5.4)
- CVSS v2: 3.5
- EPSS exploit prediction: 1% (70th percentile)
- Actively exploited: Not listed in CISA KEV
- Weakness: CWE-79
- Affected product: Yellowfinbi Yellowfin
- Published:
- Last modified:
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".
Frequently asked questions
- What is CVE-2021-36387?
- 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".
- How severe is CVE-2021-36387?
- CVE-2021-36387 has a CVSS 3.x base score of 5.4, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.
- Is CVE-2021-36387 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (70th percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2021-36387?
- CVE-2021-36387 affects Yellowfinbi Yellowfin. See the affected-products list for the exact vulnerable versions.
- How do I fix CVE-2021-36387?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
- When was CVE-2021-36387 published?
- CVE-2021-36387 was published on 2021-10-14 and last updated on 2026-06-17.
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
Affected products (1)
- cpe:2.3:a:yellowfinbi:yellowfin:*:*:*:*:*:*:*:*
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