Vulnerability Description
GetSimple CMS My SMTP Contact Plugin 1.1.2 suffers from a Stored Cross-Site Scripting (XSS) vulnerability. The plugin attempts to sanitize user input using htmlspecialchars(), but this can be bypassed by passing dangerous characters as escaped hex bytes. This allows attackers to inject arbitrary client-side code that executes in the administrator's browser when visiting a malicious page.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Get-Simple | Getsimplecms | 1.1.2 |
Related Weaknesses (CWE)
References
- http://get-simple.infoProduct
- https://github.com/GetSimpleCMS/GetSimpleCMSProduct
- https://github.com/boku7/gsSMTP-Csrf2Xss2RCE/ExploitThird Party Advisory
- https://www.exploit-db.com/exploits/49798ExploitThird Party AdvisoryVDB Entry
- https://www.vulncheck.com/advisories/getsimple-cms-my-smtp-contact-plugin-storedThird Party Advisory
FAQ
What is CVE-2021-47870?
CVE-2021-47870 is a vulnerability with a CVSS score of 5.4 (MEDIUM). GetSimple CMS My SMTP Contact Plugin 1.1.2 suffers from a Stored Cross-Site Scripting (XSS) vulnerability. The plugin attempts to sanitize user input using htmlspecialchars(), but this can be bypassed...
How severe is CVE-2021-47870?
CVE-2021-47870 has been rated MEDIUM with a CVSS base score of 5.4/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2021-47870?
Check the references section above for vendor advisories and patch information. Affected products include: Get-Simple Getsimplecms.