CoreCVE
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MEDIUM

In CMS Made Simple 2.2.3.1, the is_file_acceptable function in modules/FileManager/action.upload.php only blocks file extensions that begin or end with a "php" substring, which allows remote attackers to bypass intended access restrictions or trigger XSS via other extensions, as demonstrated by .phtml, .pht, .html, or .svg

Published Nov 12, 2017

Description

In CMS Made Simple 2.2.3.1, the is_file_acceptable function in modules/FileManager/action.upload.php only blocks file extensions that begin or end with a "php" substring, which allows remote attackers to bypass intended access restrictions or trigger XSS via other extensions, as demonstrated by .phtml, .pht, .html, or .svg.

Affected products

Remediation

No remediation recorded yet.

Metrics

Weaknesses (1)

CWE-79

Cross-site Scripting (XSS)

References (1)

Change history (0)

No recorded changes yet.

Sources
CVE.org / MITRE
Status PUBLISHED
Assigner mitre
Published Nov 12, 2017
Updated Aug 5, 2024
Reserved Nov 12, 2017
Link CVE-2017-16798
CISA Vulnrichment
Updated n/a
NVD
Status Modified
Modified Jun 17, 2026
Link CVE-2017-16798
Red Hat
Severity n/a
Public date n/a
Links CVE-2017-16798