Segurium Research
We read WordPress plugin security releases against the version before them and write up what changed. Every teardown here covers a bug whose fix has already shipped, traces each claim to a public source, and carries no working exploit.
A remote server could redirect a CSV import in 2.4.13 to a cloud metadata endpoint or a private service, and the plugin followed that redirect without checking the new host. Version 2.4.14 replaces download_url() with a checked fetch.
Depicter 4.8.1 rewrites the lead export query. Form field names from public submissions went straight into a raw MAX(IF()) SQL fragment, and sort parameters reached ORDER BY with no check. Update sites on 4.8.0 or earlier.
The CRM's IMAP connector saved mail attachments without checking the extension or normalising the path, so a crafted email could drop a PHP file into wp-content/uploads. CVE-2026-18080, CVSS 9.8, fixed in 1.17.8.
Formidable Forms 6.34 adds a FrmHtmlSanitizer class that cleans href and src values before entry data reaches the screen. Releases up to 6.33.1 checked those URLs while they were still entity-encoded.
Gutentor 4.0.6 adds capability checks to its own REST API. Version 4.0.5 and earlier returned non-public post content and the plain post_password value, and let callers filter posts by password. About 30,000 sites run the plugin.
WPvivid Backup 0.9.132 and earlier extracts backup archives without checking file paths. A crafted backup can write files outside the restore folder. Version 0.9.133 adds path containment checks and fixes SQL injection in the uploads cleaner.
Before 6.65, BlogVault, MalCare and WP Remote built the secret that binds a site to their remote management service with a weak random number generator, and leaked data derived from it to unauthenticated callers. CVE-2026-19718, CVSS 8.1.
Segurium is a WordPress malware scanner and cleanup tool on the official directory at wordpress.org/plugins/segurium/. This research runs whether or not you install it.
