SEPTEMBER 15, 2026
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Case File

CVE-2026-18386

MEDIUM · CVSS 4.9 EPSS 0.75%

Source: NVD + CISA KEV + EPSS · Published 2026-09-10 · Last synced 2026-09-15

CyberRota Analysis

AI-Generated

The WP BackItUp Community Edition plugin for WordPress is susceptible to a Directory Traversal vulnerability, allowing authenticated attackers with administrator-level access to read arbitrary files on the server through the 'backup_file' parameter. This could lead to exposure of sensitive information stored on the server. WordPress site administrators using this plugin should prioritize applying updates or mitigating this vulnerability to protect their systems.

CVE
CVE-2026-18386
Severity
MEDIUM
CVSS
4.9
EPSS
0.75%
WordPress

Original NVD Description

The WP BackItUp Community Edition plugin for WordPress is vulnerable to Directory Traversal in all versions up to, and including, 2.1.0 via the 'backup_file' parameter parameter. This makes it possible for authenticated attackers, with administrator-level access and above, to read the contents of arbitrary files on the server, which can contain sensitive information. The basename() normalization present in the handler only executes when the traversed target path does not exist, providing no protection against reads of existing files.