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The YayMail – WooCommerce Email Customizer plugin for WordPress is vulnerable to unauthorized modification of data that can lead to privilege escalation due to a missing capability check on the yaymail_import_state AJAX action in all versions up to, and including, 4.3.2. Authenticated attackers with Shop Manager-level access (or higher) can invoke this AJAX action to update arbitrary WordPress options. This can be abused to enable user registration and set the default registration role to administrator, enabling the attacker to obtain administrative access.
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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.
If you can’t patch tonight, do this now.
admin-ajax.php to trusted users/IPs, reduce/disable Shop Manager (and other non-admin) accounts that can authenticate, and monitor for unexpected WordPress option changes (notably user registration being enabled and the default registration role being changed).Patch, then assume compromise.
yaymail_import_state AJAX action (i.e., apply the vendor fix/patch).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.
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.
7 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.