What’s Vulnerable › Vulnerabilities

CVE-2019-25138: User Submitted Posts <= 20190312 - Unauthenticated Arbitrary File Upload

• Severity: critical (CVSS 9.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 2.3% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2023-06-07 · updated 2026-06-17
• Weakness: CWE-434

Description

The User Submitted Posts plugin for WordPress is vulnerable to arbitrary file uploads due to missing file type validation in the usp_check_images function in versions up to, and including, 20190312. This makes it possible for unauthenticated attackers to upload arbitrary files on the affected sites server which may make remote code execution possible.

Affected products

• specialk User Submitted Posts – Enable Users to Submit Posts from the Front End: through 20190312

References

• https://blog.nintechnet.com/arbitrary-file-upload-vulnerability-in-wordpress-user-submitted-posts-plugin/
• https://wordpress.org/plugins/user-submitted-posts/#developers
• https://www.wordfence.com/threat-intel/vulnerabilities/id/5a97877b-fb4d-4e87-bcff-56be65fee6ce?source=cve
• https://blog.nintechnet.com/arbitrary-file-upload-vulnerability-in-wordpress-user-submitted-posts-plugin/
• https://wordpress.org/plugins/user-submitted-posts/#developers
• https://www.wordfence.com/threat-intel/vulnerabilities/id/5a97877b-fb4d-4e87-bcff-56be65fee6ce?source=cve

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