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CVE-2026-29201 is an arbitrary file read vulnerability in cPanel & WHM and WP Squared caused by insufficient input validation of the feature file name parameter in the feature::LOADFEATUREFILE adminbin call. The vulnerable code accepts a relative path in place of an expected feature file name and does not adequately restrict traversal outside the intended directory. An authenticated attacker can abuse this path traversal condition to cause the application to read files from elsewhere on the server filesystem that should not be accessible through this interface. The issue was patched on May 8, 2026 across supported release branches.
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What it means. What to do now. Patch path, mitigations, and the assume-compromise checklist.
What an attacker gets, and what they’ve been doing with it.
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Patch, then assume compromise.
No public exploits tracked yet. Mallory keeps watching.
No public exploit code observed for this vulnerability.
Products and vendors Mallory has correlated with this vulnerability. Open in Mallory to drill down to specific CPE configurations and version ranges.
Vendor-confirmed product mapping. Mallory continuously reconciles this list against your asset inventory.
25 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
A cPanel/WHM arbitrary file read vulnerability caused by poor validation of feature file names, potentially exposing server configuration data.
An arbitrary file read vulnerability in cPanel's feature file loading mechanism.
A path traversal vulnerability in cPanel that allows an authenticated attacker to read arbitrary files via the feature::LOADFEATUREFILE adminbin call.
An input validation vulnerability in cPanel & WHM's feature::LOADFEATUREFILE adminbin call that could allow arbitrary file reads on the server.
Query your assets running an affected version, and investigate the blast radius.
Every observed campaign linking this CVE to a named adversary.
Malware families riding this exploit, with evidence and IOCs.
YARA, Sigma, Snort, and vendor rules, auto-deployed to your SIEM.
Cross-references every affected SKU, including bundled OEM variants.
Community discussion across Reddit, Mastodon, and other social sources.