CVE-2026-71542

GetSimple CMS: Stored Cross-Site Scripting (XSS) via the "title" parameter in admin/components.php

HIGH
8.7
CVSS Score
Published: October 1, 2026 at 07:40 PM UTC
Updated: October 1, 2026 at 08:23 PM UTC
1 product affected across 1 vendorGetSimpleCMS-CE

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Severity
HIGH8.7
Exploit prediction
EPSS 0.4%
SSVC
PoC

Description

GetSimple CMS is a content management system (CMS), and GetSimple CMS CE is the community edition of that CMS. In versions 3.3.22 and prior, GetSimpleCMS-CE is vulnerable to stored Cross-Site Scripting (XSS) in the "Theme to Components" functionality (admin/components.php) via the title parameter. The stored title is rendered inside a double-quoted HTML attribute in the administrative interface through an output path that HTML-entity-decodes the value before printing it, without re-encoding for the attribute context. This allows persistent execution of arbitrary JavaScript in the admin panel. At time of publication, there are no publicly available patches.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

SSVC — Action Prioritization

SSVCPoCNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

8.7HIGHGitHub_M
Vector?

Quick Info

StatusDEFERRED
CWE
CWE-79

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