Vulnerability Description
An issue was discovered in flatCore before 2.0.0 build 139. A stored XSS vulnerability was identified in the prefs_smtp_psw HTTP request body parameter for the acp interface. An admin user can inject malicious client-side script into the affected parameter without any form of input sanitization. The injected payload will be executed in the browser of a user whenever one visits the affected module page.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Flatcore | Flatcore | <= 2.0.0 |
Related Weaknesses (CWE)
References
- http://packetstormsecurity.com/files/160936/flatCore-CMS-XSS-File-Disclosure-SQLExploitThird Party AdvisoryVDB Entry
- https://github.com/flatCore/flatCore-CMSProductThird Party Advisory
- https://sec-consult.com/vulnerability-lab/Third Party Advisory
- http://packetstormsecurity.com/files/160936/flatCore-CMS-XSS-File-Disclosure-SQLExploitThird Party AdvisoryVDB Entry
- https://github.com/flatCore/flatCore-CMSProductThird Party Advisory
- https://sec-consult.com/vulnerability-lab/Third Party Advisory
FAQ
What is CVE-2021-23836?
CVE-2021-23836 is a vulnerability with a CVSS score of 4.8 (MEDIUM). An issue was discovered in flatCore before 2.0.0 build 139. A stored XSS vulnerability was identified in the prefs_smtp_psw HTTP request body parameter for the acp interface. An admin user can inject ...
How severe is CVE-2021-23836?
CVE-2021-23836 has been rated MEDIUM with a CVSS base score of 4.8/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2021-23836?
Check the references section above for vendor advisories and patch information. Affected products include: Flatcore Flatcore.