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Vulnerability record · CVE-2026-27147 · published 21 February 2026

CVE-2026-27147: Getsimple-ce getsimple cms cross-site scripting vulnerability

GGetsimple Ce · Getsimple Cms

GetSimple CMS is a content management system. All versions of GetSimple CMS are vulnerable to XSS through SVG file uploads. Authenticated users can upload SVG files via the administrative upload functionality, but they are not properly sanitized or restricted, allowing an attacker to embed malicious JavaScript. When the uploaded SVG file is accessed, the script executes in the browser. This issue does not have a fix at the time of publication.

6.9 CVSS 4.0 Medium EPSS 0.25% · top 85.6% CWE-79 · Cross-site scripting
6.9CVSS 4.0 base score
0.25%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
1References, 1 tagged exploit
17 Jun 2026Last modified by NVD

Description

GetSimple CMS is a content management system. All versions of GetSimple CMS are vulnerable to XSS through SVG file uploads. Authenticated users can upload SVG files via the administrative upload functionality, but they are not properly sanitized or restricted, allowing an attacker to embed malicious JavaScript. When the uploaded SVG file is accessed, the script executes in the browser. This issue does not have a fix at the time of publication.

CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://github.com/GetSimpleCMS-CE/GetSimpleCMS-CE/security/advisories/GHSA-5gmq-hrcx-6w45 ExploitMitigationVendor Advisory

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

9.8CVE-2024-55085Getsimple-ce getsimple cms code injection vulnerabilityGetSimple CMS CE 3.3.19 suffers from arbitrary code execution in the template editing function in the background management system, which can be used…EPSS 0.86%8.8CVE-2026-28495Getsimple-ce getsimple cms cross-site request forgery vulnerabilityGetSimple CMS is a content management system. The massiveAdmin plugin (v6.0.3) bundled with GetSimpleCMS-CE v3.3.22 allows an authenticated administr…EPSS 0.32%8.8CVE-2026-27202Getsimple-ce getsimple cms path traversal vulnerabilityGetSimple CMS is a content management system. All versions of GetSimple CMS have a flaw in the Uploaded Files feature that allows for arbitrary file …EPSS 0.54%8.8CVE-2024-55088Getsimple-ce getsimple cms cross-site request forgery vulnerabilityGetSimple CMS CE 3.3.19 is vulnerable to Server-Side Request Forgery (SSRF) in the backend plugin module.EPSS 0.25%8.7CVE-2026-27161Getsimple-ce getsimple cms information exposure vulnerabilityGetSimple CMS is a content management system. All versions of GetSimple CMS rely on .htaccess files to restrict access to sensitive directories such …EPSS 0.47%8.6CVE-2025-48492Getsimple-ce getsimple cms command injection vulnerabilityGetSimple CMS is a content management system. In versions starting from 3.3.16 to 3.3.21, an authenticated user with access to the Edit component can…EPSS 0.91%7.2CVE-2024-55086Getsimple-ce getsimple cms server-side request forgery (ssrf) vulnerabilityIn the GetSimple CMS CE 3.3.19 management page, Server-Side Request Forgery (SSRF) can be achieved in the plug-in download address in the backend man…EPSS 0.42%7.1CVE-2026-27146Getsimple-ce getsimple cms cross-site request forgery vulnerabilityGetSimple CMS is a content management system. All versions of GetSimple CMS do not implement CSRF protection on the administrative file upload endpoi…EPSS 0.17%

Source: NIST National Vulnerability Database (record CVE-2026-27147), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.