CVE-2021-39267

Public Exploit

Description

Persistent cross-site scripting (XSS) in the web interface of SuiteCRM before 7.11.19 allows a remote attacker to introduce arbitrary JavaScript via a Content-Type Filter bypass to upload malicious files. This occurs because text/html is blocked, but other types that allow JavaScript execution (such as text/xml) are not blocked.

Category

6.1
CVSS
Severity: Medium
CVSS 3.1 •
CVSS 2.0 •
EPSS 0.72% Top 30%
Vendor Advisory suitecrm.com
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
https://github.com/salesagility/SuiteCRM product third party advisory
https://docs.suitecrm.com/admin/releases/7.11.x/#_7_11_19 release notes vendor advisory
https://thanhlocpanda.wordpress.com/2021/07/31/file-upload-bypass-suitecrm-7-11-18/ third party advisory exploit

Frequently Asked Questions

What is the severity of CVE-2021-39267?
CVE-2021-39267 has been scored as a medium severity vulnerability.
How to fix CVE-2021-39267?
To fix CVE-2021-39267, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2021-39267 being actively exploited in the wild?
It is possible that CVE-2021-39267 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~1% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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