CSRF in Get-Simple Getsimplecms
CVE-2021-47860
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.
Vulnerability class: CSRF (Cross-Site Request Forgery)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 5.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N.
EPSS exploit prediction
EPSS: 0.003 (17.2th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 17th percentile — 17.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.002 · newest: 0.003 · change: +0.000
Affected products
- Get-Simple Getsimplecms — versions 0.1
- Getsimple Cms Custom Js Plugin — versions 0.1
Weakness classification (CWE)
References
- www.exploit-db.com/exploits/49816 (Exploit, VDB Entry, Third Party Advisory, exploit)
- get-simple.info (Product, product)
- github.com/GetSimpleCMS/GetSimpleCMS (Product, product)
- github.com/boku7/gsCMS-CustomJS-Csrf2Xss2Rce (Exploit, technical-description, Third Party Advisory, exploit)
- www.exploit-db.com/exploits/49712 (Exploit, VDB Entry, Third Party Advisory, exploit)
- www.vulncheck.com/advisories/getsimple-cms-custom-js-csrf-to-xss-to-rce (Third Party Advisory, third-party-advisory)
Frequently asked questions
- What is CVE-2021-47860?
- CVE-2021-47860 is a medium-severity vulnerability in Get-Simple Getsimplecms, classified under Cross-Site Request Forgery (CSRF). CVSS score: 5.3/10. Published 2026-01-21.
- How severe is CVE-2021-47860?
- Medium severity. CVSS v3 base score is 5.3 out of 10.