CVE-2026-39292
Description
Falco Solutions PHPPageBuilder v0.31.0 contains an unrestricted file upload vulnerability in the pagemanager/pagebuilder module that allows remote attackers to upload arbitrary files and achieve remote code execution. The vulnerability exists due to insufficient validation of uploaded file types and executable content.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
PHPPageBuilder v0.31.0 allows unrestricted file upload in the pagemanager/pagebuilder module, enabling remote code execution.
Vulnerability
Falco Solutions PHPPageBuilder v0.31.0 contains an unrestricted file upload vulnerability in the pagemanager/pagebuilder module [1]. The module fails to properly validate uploaded file types and executable content, allowing arbitrary files to be uploaded to the server [2]. This affects the drag-and-drop page builder component used for managing pages.
Exploitation
An attacker with network access to the PHPPageBuilder instance can exploit this vulnerability by uploading a malicious file (e.g., a PHP web shell) through the page builder's file upload functionality [2]. The attacker does not require authentication; the upload endpoint is accessible to unauthenticated users [2]. The uploaded file is stored on the server and can be accessed directly, leading to code execution.
Impact
Successful exploitation allows the attacker to execute arbitrary PHP code on the server, resulting in full remote code execution [2]. This can lead to complete compromise of the web application and underlying server, including data theft, defacement, or further lateral movement.
Mitigation
No official patch has been released for PHPPageBuilder v0.31.0 as of the publication date [1][2]. Users should restrict access to the pagemanager/pagebuilder module, disable file uploads if possible, or implement additional server-side validation and web application firewall rules to block malicious file types.
AI Insight generated on May 29, 2026. Synthesized from this CVE's description and the cited reference URLs; citations are validated against the source bundle.
Affected products
2- Range: <=0.31.0
Patches
0No patches discovered yet.
Vulnerability mechanics
Root cause
"Insufficient validation of uploaded file types and executable content in the pagemanager/pagebuilder module allows unrestricted file upload."
Attack vector
An attacker with network access to the PHPageBuilder instance can upload arbitrary files (e.g., PHP shells) through the pagemanager/pagebuilder module because the application does not enforce sufficient validation of file extensions or MIME types [ref_id=1]. Once the malicious file is stored on the server, the attacker can access it directly via the web server to achieve remote code execution. No authentication is mentioned as a prerequisite in the advisory.
Affected code
The vulnerability resides in the pagemanager/pagebuilder module of PHPageBuilder v0.31.0. The advisory does not specify exact file paths or function names, but the issue is in the file upload handling logic that fails to validate uploaded file types and executable content.
What the fix does
The advisory does not include a patch diff or specific remediation code. To fix the vulnerability, the application must implement strict file type validation (e.g., whitelisting allowed extensions, verifying MIME types, and scanning for executable content) on all file uploads processed by the pagemanager/pagebuilder module. Without such validation, an attacker can upload and execute arbitrary PHP files.
Preconditions
- networkThe attacker must have network access to the PHPageBuilder instance's pagemanager/pagebuilder upload endpoint.
- configThe application must be configured to allow file uploads through the pagemanager/pagebuilder module (default behavior).
Generated on May 29, 2026. Inputs: CWE entries + fix-commit diffs from this CVE's patches. Citations validated against bundle.
References
1News mentions
0No linked articles in our index yet.