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3 vulnerabilities by GetSimple CMS

CVE-2021-47870 (GCVE-0-2021-47870)

Vulnerability from cvelistv5 – Published: 2026-01-21 17:32 – Updated: 2026-01-22 16:51
VLAI?
Title
GetSimple CMS My SMTP Contact Plugin 1.1.2 - Stored XSS
Summary
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.
Severity ?
5.4 (Medium)
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:A/VC:N/VI:N/VA:N/SC:N/SI:N/SA:N
CWE
  • CWE-79 - Improper Neutralization of Input During Web Page Generation ('Stored Cross-site Scripting')
Assigner
References
Impacted products
Vendor Product Version
GetSimple CMS My SMTP Contact Plugin Affected: 1.1.2
Create a notification for this product.
Credits
Bobby Cooke (boku)
Show details on NVD website
To clipboard 

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CVE-2021-47860 (GCVE-0-2021-47860)

Vulnerability from cvelistv5 – Published: 2026-01-21 17:29 – Updated: 2026-01-22 16:51
VLAI?
Title
GetSimple CMS Custom JS 0.1 - CSRF to XSS to RCE
Summary
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.
Severity ?
8.5 (High)
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N
5.3 (Medium)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
CWE
  • CWE-352 - Cross-Site Request Forgery (CSRF)
Assigner
References
Impacted products
Vendor Product Version
GetSimple CMS Custom JS Plugin Affected: 0.1
Create a notification for this product.
Credits
Bobby Cooke (boku) & Abhishek Joshi
Show details on NVD website
To clipboard 

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CVE-2021-47830 (GCVE-0-2021-47830)

Vulnerability from cvelistv5 – Published: 2026-01-21 17:27 – Updated: 2026-01-22 15:54
VLAI?
Title
GetSimple CMS My SMTP Contact Plugin 1.1.1 - CSRF
Summary
GetSimple CMS My SMTP Contact Plugin 1.1.1 contains a cross-site request forgery (CSRF) vulnerability. Attackers can craft a malicious webpage that, when visited by an authenticated administrator, can change SMTP configuration settings in the plugin. This may allow unauthorized changes but does not directly enable remote code execution.
Severity ?
5.1 (Medium)
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N
CWE
  • CWE-352 - Cross-Site Request Forgery (CSRF)
Assigner
References
Impacted products
Vendor Product Version
GetSimple CMS My SMTP Contact Plugin Affected: 1.1.1
Create a notification for this product.
Credits
Bobby Cooke (boku)
Show details on NVD website
To clipboard 

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