What’s Vulnerable › Vulnerabilities

CVE-2024-6161: Default Thumbnail Plus <= 1.0.2.3 - Authenticated (Contributor+) Arbitrary File Upload

• Severity: high (CVSS 8.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.8% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2024-07-09 · updated 2026-06-17
• Weakness: CWE-434

Description

The Default Thumbnail Plus plugin for WordPress is vulnerable to arbitrary file uploads due to missing file type validation in the 'get_cache_image' function in all versions up to, and including, 1.0.2.3. This makes it possible for authenticated attackers, with contributor-level and above permissions, to upload arbitrary files on the affected site's server which may make remote code execution possible.

Affected products

• pjgalbraith Default Thumbnail Plus: through 1.0.2.3

References

• https://plugins.trac.wordpress.org/browser/default-thumbnail-plus/trunk/default-thumbnail-plus.php?rev=597280#L337
• https://www.wordfence.com/threat-intel/vulnerabilities/id/046f11b6-7d1a-4bd3-8250-4c5a50fab3ff?source=cve
• https://plugins.trac.wordpress.org/browser/default-thumbnail-plus/trunk/default-thumbnail-plus.php?rev=597280#L337
• https://www.wordfence.com/threat-intel/vulnerabilities/id/046f11b6-7d1a-4bd3-8250-4c5a50fab3ff?source=cve

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