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Vulnerabilities CVE-2026-45233

CVE-2026-45233

High
Open
TLP:CLEAR

HTMLy CMS 3.1.1 Path Traversal via oldfile Parameter in Autosave

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Description

HTMLy CMS through 3.1.1 contains a path traversal vulnerability that allows low-privileged authenticated attackers to relocate arbitrary files by supplying directory traversal sequences in the oldfile parameter at the admin autosave endpoint. Attackers can pass unsanitized traversal sequences directly to file_exists() and rename() functions in admin.php without canonicalization or directory boundary enforcement to cause unintended relocation of any file writable by the web server process to an attacker-specified draft location.

Details

CVSS Score
7.2
EPSS Score
0.57%

44th percentile

CVSS Vector
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:H/VA:H/SC:N/SI:N/SA:N
Confidence
90%
Published
Jun 25, 2026
Last Modified
Jul 28, 2026
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