CVE-2024-3240: CWE-502 Deserialization of Untrusted Data in Brainstorm Force ConvertPlus
The ConvertPlug plugin for WordPress is vulnerable to PHP Object Injection in all versions up to, and including, 3.5.25 via deserialization of untrusted input from the 'settings_encoded' attribute of the 'smile_info_bar' shortcode. This makes it possible for authenticated attackers, with contributor-level access and above, to inject a PHP Object. No POP chain is present in the vulnerable plugin. If a POP chain is present via an additional plugin or theme installed on the target system, it could allow the attacker to delete arbitrary files, retrieve sensitive data, or execute code.
AI Analysis
Technical Summary
The ConvertPlug plugin for WordPress (ConvertPlus) is vulnerable to PHP Object Injection through unsafe deserialization of the 'settings_encoded' attribute in the 'smile_info_bar' shortcode. This vulnerability affects all versions up to and including 3.5.25. Exploitation requires authenticated access at contributor level or above. The plugin does not contain a gadget chain (POP chain) internally, but if other installed plugins or themes provide such a chain, attackers could leverage this to perform destructive or unauthorized actions such as file deletion, data disclosure, or code execution. The CVSS v3.1 base score is 8.8, reflecting network attack vector, low attack complexity, required privileges, no user interaction, and high impact on confidentiality, integrity, and availability.
Potential Impact
Successful exploitation allows authenticated contributors or higher to inject PHP objects via deserialization, potentially leading to arbitrary file deletion, sensitive data exposure, or remote code execution if a POP chain is available through other installed components. This poses a significant risk to the confidentiality, integrity, and availability of the affected WordPress site.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is released, restrict contributor-level access and above to trusted users only. Monitor for updates from Brainstorm Force regarding a security patch for this vulnerability. Avoid installing untrusted plugins or themes that could provide a POP chain enabling full exploitation.
CVE-2024-3240: CWE-502 Deserialization of Untrusted Data in Brainstorm Force ConvertPlus
Description
The ConvertPlug plugin for WordPress is vulnerable to PHP Object Injection in all versions up to, and including, 3.5.25 via deserialization of untrusted input from the 'settings_encoded' attribute of the 'smile_info_bar' shortcode. This makes it possible for authenticated attackers, with contributor-level access and above, to inject a PHP Object. No POP chain is present in the vulnerable plugin. If a POP chain is present via an additional plugin or theme installed on the target system, it could allow the attacker to delete arbitrary files, retrieve sensitive data, or execute code.
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
The ConvertPlug plugin for WordPress (ConvertPlus) is vulnerable to PHP Object Injection through unsafe deserialization of the 'settings_encoded' attribute in the 'smile_info_bar' shortcode. This vulnerability affects all versions up to and including 3.5.25. Exploitation requires authenticated access at contributor level or above. The plugin does not contain a gadget chain (POP chain) internally, but if other installed plugins or themes provide such a chain, attackers could leverage this to perform destructive or unauthorized actions such as file deletion, data disclosure, or code execution. The CVSS v3.1 base score is 8.8, reflecting network attack vector, low attack complexity, required privileges, no user interaction, and high impact on confidentiality, integrity, and availability.
Potential Impact
Successful exploitation allows authenticated contributors or higher to inject PHP objects via deserialization, potentially leading to arbitrary file deletion, sensitive data exposure, or remote code execution if a POP chain is available through other installed components. This poses a significant risk to the confidentiality, integrity, and availability of the affected WordPress site.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is released, restrict contributor-level access and above to trusted users only. Monitor for updates from Brainstorm Force regarding a security patch for this vulnerability. Avoid installing untrusted plugins or themes that could provide a POP chain enabling full exploitation.
Technical Details
- Data Version
- 5.1
- Assigner Short Name
- Wordfence
- Date Reserved
- 2024-04-02T20:02:49.946Z
- Cvss Version
- 3.1
- State
- PUBLISHED
Threat ID: 699f6c8eb7ef31ef0b56640e
Added to database: 2/25/2026, 9:41:34 PM
Last enriched: 4/9/2026, 7:29:23 AM
Last updated: 4/12/2026, 5:31:34 PM
Views: 11
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