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CVE-2025-7852 is an arbitrary file upload vulnerability in the WPBookit plugin for WordPress affecting all versions through 1.0.6. The flaw is caused by missing file type validation in the image_upload_handle() function exposed through the add_new_customer route. The upload handler passes client-supplied files to move_uploaded_file() without enforcing an allowlist of extensions or MIME types and without sanitizing the supplied filename. As a result, an unauthenticated attacker can upload arbitrary files to the server. If the uploaded file is placed in a web-accessible location and interpreted by the server as executable code, the vulnerability can be leveraged for remote code execution.
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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.
7 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
A vulnerability in WPBookit listed among the flaws targeted by the operation.
A vulnerability in the WPBookit WordPress plugin that was directly targeted in the WP-SHELLSTORM campaign.
A publicly known vulnerability affecting the WPBookit WordPress plugin that is being exploited in a large-scale campaign targeting CMS platforms for webshell deployment.
An arbitrary file upload vulnerability in WPBookit that produced a small number of confirmed compromises.
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.