CVE-2021-39267

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.

CVSS v3.1 NVD

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

CVSS v2.0 NVD

4.3 MEDIUMAV:N/AC:M/Au:N/C:N/I:P/A:N

EPSS

1.97% chance of exploitation in the next 30 days, 80th percentile

Published

2021-08-18

Updated

2024-08-04

Proof-of-concept exploits (1)

• https://thanhlocpanda.wordpress.com/2021/07/31/file-upload-bypass-suitecrm-7-11-18/

Security advisories

• https://docs.suitecrm.com/admin/releases/7.11.x/#_7_11_19
• salesagility/SuiteCRM
• https://thanhlocpanda.wordpress.com/2021/07/31/file-upload-bypass-suitecrm-7-11-18

References

• CVE Record
• NVD entry