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CVE-2026-4703 is an unauthenticated PHP Object Injection vulnerability in the WS Form LITE – Drag & Drop Contact Form Builder plugin for WordPress affecting all versions up to and including 1.10.80. The flaw is caused by deserialization of untrusted input taken from form submission meta values, allowing a remote attacker to supply crafted serialized data and cause arbitrary PHP objects to be instantiated. The vulnerable plugin does not include a known property-oriented programming (POP) chain of its own, so exploitation impact depends on the presence of a usable POP chain in another installed plugin or theme. Where such a chain exists, the object injection can be leveraged into more serious post-deserialization effects.
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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.
11 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
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.