Brainstorm Force SureCart: PHP object injection via deserialization
Summary
The SureCart WordPress plugin up to and including version 4.9.3 contains a PHP object injection flaw (CWE-502) caused by deserialization of untrusted data. An attacker with low privileges, such as a customer or other low-privilege account, may be able to send crafted data that the plugin processes, which can lead to harmful actions on the server. Patchstack rates the issue medium priority with a CVSS base score of 8.8, and CISA SSVC rates the technical impact as total.
Affected
- SureCart plugin for WordPress, versions up to and including 4.9.3
- Required privilege per CVSS: low (PR:L), no user interaction
Fixed in
- Version 4.9.4 or later (Patchstack and CNA data). Newer releases are available; update to the latest version.
Workaround
Unknown. No vendor workaround documented. Patchstack lists mitigation rules for SureCart, but it is not confirmed that one covers this CVE.
Exploitation
- No evidence of exploitation in the wild found.
- CISA SSVC: exploitation none, automatable no.
- Patchstack states the vulnerability is expected to become exploited.
- EPSS about 0.42 percent (low).
- No public proof of concept found.
Our recommendation
- Update SureCart to version 4.9.4 or later, preferably the newest available release, immediately.
- Check which SureCart version is installed on all WordPress sites.
- Review user roles and limit low-privilege accounts that are not needed.
- Monitor logs for unusual requests to SureCart endpoints until the update is complete.
- Verify the CVE record at cve.org, as one aggregator referenced a different CVE ID as a duplicate.
Public exploits
PoC-in-GitHub, Metasploit and Exploit-DB list nothing for this CVE.
Research sources
- Patchstack advisory: WordPress SureCart plugin <= 4.9.3 PHP Object Injection patchstack.com
- Patchstack SureCart vulnerability overview patchstack.com
- WordPress.org: SureCart plugin wordpress.org
- SureCart: What's new surecart.com
- Positive Technologies via Vulners: PT-2026-113986 vulners.com
Researched and written up in English and German by an AI (Claude by Anthropic) based on NVD, CISA, EPSS and the sources listed. The vendor information is authoritative. Researched on 31 Oct 2026, 16:52.
Original description (NVD)
Deserialization of Untrusted Data vulnerability in Brainstorm Force SureCart surecart allows Object Injection.This issue affects SureCart: from n/a through 4.9.3.
Sources
The tracker combines official, freely usable data sources – updated continuously:
- NVD (NIST) – CVEs, rating (CVSS), affected products
- CISA KEV – vulnerabilities confirmed by CISA as actively exploited
- CISA Vulnrichment – CISA assessment (SSVC) in the official CVE record
- FIRST EPSS – probability of exploitation
- Microsoft MSRC – Patch Tuesday: vulnerabilities, severity, updates
- PoC-in-GitHub – public proof-of-concept repositories
- Metasploit (Rapid7) – modules of the Metasploit Framework
- Exploit-DB (OffSec) – archive of public exploits (links only)
- Patch days: official vendor pages (linked per vendor) (Vendor patch days)
This product uses data from the NVD API but is not endorsed or certified by the NVD. EPSS data © FIRST.org.
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