Vulnerability Description
An issue was discovered in flatCore before 2.0.0 build 139. A reflected XSS vulnerability was identified in the media_filter HTTP request body parameter for the acp interface. The affected parameter accepts malicious client-side script without proper input sanitization. For example, a malicious user can leverage this vulnerability to steal cookies from a victim user and perform a session-hijacking attack, which may then lead to unauthorized access to the site.
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-2021-23838?
CVE-2021-23838 is a vulnerability with a CVSS score of 4.8 (MEDIUM). An issue was discovered in flatCore before 2.0.0 build 139. A reflected XSS vulnerability was identified in the media_filter HTTP request body parameter for the acp interface. The affected parameter a...
How severe is CVE-2021-23838?
CVE-2021-23838 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-2021-23838?
Check the references section above for vendor advisories and patch information. Affected products include: Flatcore Flatcore.