Medium severity5.4NVD Advisory· Published Jan 21, 2026· Updated May 12, 2026
CVE-2021-47870
CVE-2021-47870
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.
Affected products
1- cpe:2.3:a:get-simple:getsimplecms:1.1.2:*:*:*:*:*:*:*
Patches
0No patches discovered yet.
Vulnerability mechanics
AI mechanics synthesis has not run for this CVE yet.
References
3- www.exploit-db.com/exploits/49798nvdExploitThird Party AdvisoryVDB Entry
- www.vulncheck.com/advisories/getsimple-cms-my-smtp-contact-plugin-stored-xssnvdThird Party Advisory
- get-simple.infonvdProduct
News mentions
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