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PHPMailer before version 5.2.22 contains a vulnerability in the msgHTML method, which processes HTML documents for use as email message bodies. If the method is called with an unfiltered, user-supplied HTML document and no base directory is set, relative image URLs in the HTML are resolved as absolute local file paths from the root directory. These files are then attached to the outgoing email, potentially disclosing arbitrary local files to an attacker.
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What an attacker gets, and what they’ve been doing with it.
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No valid public exploits. Mallory filtered out 1 candidate as fakes, detection scripts, or README-only repos.
All candidate exploits were filtered out by Mallory's validation.
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Vendor-confirmed product mapping. Mallory continuously reconciles this list against your asset inventory.
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No public activity observed for this vulnerability.
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.
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Cross-references every affected SKU, including bundled OEM variants.
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