CVE-2025-2525 Overview
CVE-2025-2525 is an arbitrary file upload vulnerability in the Streamit theme for WordPress. The flaw exists in the st_Authentication_Controller::edit_profile function, which fails to validate file types during profile updates. All versions up to and including 4.0.1 are affected.
Authenticated attackers with subscriber-level access or higher can upload arbitrary files to the affected site's server. Successful exploitation can lead to remote code execution, allowing attackers to take control of the underlying WordPress site. The issue is categorized under CWE-434: Unrestricted Upload of File with Dangerous Type.
Critical Impact
Authenticated subscribers can upload PHP files through the profile edit endpoint, enabling webshell deployment and full site compromise.
Affected Products
- Streamit WordPress theme by Iqonic Design
- All versions through 4.0.1
- WordPress installations using Streamit for video streaming sites
Discovery Timeline
- 2025-04-08 - CVE-2025-2525 published to NVD
- 2026-06-17 - Last updated in NVD database
Technical Details for CVE-2025-2525
Vulnerability Analysis
The vulnerability resides in the st_Authentication_Controller::edit_profile function exposed by the Streamit theme. This function handles user profile updates, including avatar or media uploads, but does not enforce file type validation before writing the uploaded content to disk.
Because WordPress assigns the subscriber role to any registered user by default on many sites, the attack surface is broad. An attacker only needs a valid account to invoke the vulnerable endpoint. Uploaded files are placed within the web-accessible directory structure, where the web server interprets PHP files and executes attacker-controlled code.
The Wordfence Threat Intelligence team documented the issue in their Wordfence Vulnerability Report. Iqonic Design addressed the issue in the Streamit changelog published at the Ionic Documentation Change Log.
Root Cause
The root cause is missing file type validation in the profile edit handler. The function accepts uploaded files without verifying MIME type, file extension, or magic byte signatures. WordPress provides helper functions such as wp_check_filetype_and_ext and wp_handle_upload, but the Streamit theme bypasses these safeguards.
Attack Vector
The attack is performed remotely over the network. An attacker first authenticates with subscriber-level credentials, which can be obtained through self-registration on sites that allow it. The attacker then submits a crafted multipart form POST request to the edit_profile endpoint containing a malicious PHP file. Once stored on the server, the attacker requests the file's URL directly to trigger execution and obtain a webshell.
For technical details on the exploit primitive, refer to the Wordfence Vulnerability Report.
Detection Methods for CVE-2025-2525
Indicators of Compromise
- Unexpected .php, .phtml, or .phar files within the WordPress wp-content/uploads/ directory or theme-specific avatar directories
- POST requests to profile edit endpoints containing multipart payloads with executable file extensions
- New low-privilege WordPress accounts followed shortly by file upload activity
- Outbound connections from the web server process to attacker-controlled infrastructure following profile updates
Detection Strategies
- Review web server access logs for POST requests targeting the Streamit edit_profile action originating from subscriber accounts
- Hash and inventory all files in upload directories, then alert on new files with executable extensions
- Inspect WordPress audit logs for profile updates that coincide with file write events on the filesystem
- Monitor PHP-FPM or httpd process trees for child processes spawning shells, package managers, or network utilities
Monitoring Recommendations
- Forward WordPress, web server, and filesystem audit logs to a centralized SIEM for correlation across upload and execution events
- Enable file integrity monitoring on wp-content/uploads/ and theme directories
- Track creation of new subscriber accounts and correlate with subsequent upload requests to identify exploitation patterns
How to Mitigate CVE-2025-2525
Immediate Actions Required
- Upgrade the Streamit theme to a version newer than 4.0.1 once a patched release is confirmed by Iqonic Design
- Audit all WordPress user accounts and remove unrecognized subscriber-level accounts
- Scan the web root and upload directories for unauthorized PHP files and remove any webshells found
- Rotate WordPress administrator credentials and database secrets if compromise is suspected
Patch Information
Review the Ionic Documentation Change Log for the latest Streamit theme release notes and apply the vendor-provided update. Verify the installed theme version in the WordPress admin dashboard after patching. Theme licensing and download details are available through ThemeForest Streamit Theme Info.
Workarounds
- Disable new user self-registration in WordPress settings to reduce the population of subscriber accounts attackers can abuse
- Configure the web server to deny PHP execution within wp-content/uploads/ using directory-level rules
- Place a web application firewall in front of the WordPress site to block multipart uploads carrying PHP file extensions to the profile edit endpoint
- Restrict the Streamit profile edit endpoint to authenticated administrators until a patched release is installed
# Configuration example: deny PHP execution in WordPress uploads (Apache .htaccess)
<FilesMatch "\.(php|phtml|phar|php[0-9]+)$">
Require all denied
</FilesMatch>
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.
