Unrated severityNVD Advisory· Published Jan 21, 2026· Updated Apr 7, 2026
GetSimple CMS Custom JS 0.1 - CSRF to XSS to RCE
CVE-2021-47860
Description
GetSimple CMS Custom JS 0.1 plugin contains a cross-site request forgery vulnerability that allows unauthenticated attackers to inject arbitrary client-side code into administrator browsers. Attackers can craft a malicious website that triggers a cross-site scripting payload to execute remote code on the hosting server when an authenticated administrator visits the page.
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LLM-synthesized narrative grounded in this CVE's description and references.
Affected products
2- GetSimple CMS/Custom JS Pluginv5Range: 0.1
Patches
Vulnerability mechanics
References
4- www.exploit-db.com/exploits/49712mitreexploit
- www.exploit-db.com/exploits/49816mitreexploit
- www.vulncheck.com/advisories/getsimple-cms-custom-js-csrf-to-xss-to-rcemitrethird-party-advisory
- get-simple.infomitreproduct
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