CVE-2026-14637: Unsafe Deserialization in Ecommerce-CodeIgniter-Bootstrap Remote Code Execution

Technical summary

CVE-2026-14637 is a remote code execution vulnerability stemming from unsafe deserialization in the getCartItems function within application/libraries/ShoppingCart.php. The vulnerable code accepts the shopping_cart argument without adequate input validation before deserializing it into PHP objects. This allows an unauthenticated attacker to craft a malicious serialized payload that, when deserialized, instantiates dangerous object chains leading to arbitrary code execution. The vulnerability is classified under CWE-20 (Improper Input Validation) and CWE-502 (Deserialization of Untrusted Data). With a CVSS v3.1 score of 8.2 (HIGH), the attack requires no authentication, no user interaction, and results in high availability impact and limited confidentiality exposure.

Business impact

This vulnerability poses a severe operational risk. Successful exploitation could allow attackers to take control of the e-commerce application, manipulate product listings, intercept transactions, steal customer payment information, or deface the storefront. The public disclosure of exploit details means that threat actors are likely already developing or using tools to target vulnerable instances. For businesses relying on this codebase, the combination of remote exploitability and code execution capability means rapid compromise is feasible without detection. Customer trust, regulatory compliance (PCI-DSS for payment processing, GDPR for data protection), and revenue continuity are all at immediate risk.

Affected systems

All deployments of kirilkirkov Ecommerce-CodeIgniter-Bootstrap up to and including commit 13fd582aaf49aeab7438acc0fc3eb973a1f5e6a7 are vulnerable. The project uses continuous delivery with rolling releases, meaning there are no discrete versioned releases to reference. Organizations must identify which commit hash their deployed instance corresponds to. Any application built from this repository before the patched commit 49b20f53de2b7ec34e920b11c863f1491d911a04 requires immediate attention. Notably, no other vendors or products are listed as affected by this specific CVE, indicating this is a project-specific issue rather than a supply chain compromise.

Exploitability

Exploitability is high and active. The attack vector is network-based, requires no authentication, and involves no complex environmental setup. The public disclosure of exploit details significantly lowers the barrier to weaponization. An attacker needs only to send a specially crafted HTTP request with a malicious serialized object in the shopping_cart parameter to trigger code execution. The low attack complexity score indicates the flaw is straightforward to trigger once understood. Organizations should assume this vulnerability is already being scanned for and exploited in the wild.

Remediation

Apply the patch identified by commit 49b20f53de2b7ec34e920b11c863f1491d911a04 to your codebase immediately. Before patching, implement strict input validation and sanitization on the shopping_cart parameter if possible. Consider implementing a Web Application Firewall (WAF) rule to block requests with serialized object markers. If immediate patching is impossible, isolate affected systems from untrusted networks and monitor access logs for signs of exploitation attempts. Verify that the patched code implements proper object validation or uses safe deserialization alternatives.

Patch guidance

Merge or cherry-pick commit 49b20f53de2b7ec34e920b11c863f1491d911a04 into your current branch. Given the rolling-release model of this project, determine your current commit hash and confirm it is at or after the patched commit. Test the patch thoroughly in a staging environment that mirrors production configuration, including any custom modifications to the ShoppingCart.php library. Verify that shopping cart functionality works correctly post-patch and that no serialized objects are being deserialized without validation. Consider implementing a staged rollout to production to catch any integration issues early. Document the patch application for compliance and incident response audits.

Detection guidance

Monitor application logs and network traffic for requests containing suspicious serialization markers (such as 'O:', 'r:', or 'C:' in base64-encoded or raw serialized PHP data) in the shopping_cart parameter. Deploy WAF rules to detect common PHP object injection patterns. Search web server access logs for POST/GET requests to cart endpoints with unusual parameter lengths or encoded payloads. Monitor process execution on the application server for unexpected child processes spawned by the PHP process, which may indicate successful exploitation. Implement runtime application self-protection (RASP) if available in your stack. Check for file system modifications in web-accessible directories as indicators of web shells or backdoors planted by attackers.

Why prioritize this

This vulnerability merits immediate priority due to the combination of high CVSS score (8.2), public exploit availability, remote unauthenticated exploitability, and direct path to code execution. For e-commerce environments, the access to payment data and customer information elevates the business criticality. The lack of UI requirement and low attack complexity mean that automated attacks can be deployed at scale. Organizations running this codebase should treat this as a critical incident requiring emergency patching procedures.

Risk score, explained

The CVSS v3.1 score of 8.2 reflects: (1) Network-based attack vector requiring no privileges or user interaction, (2) Low attack complexity—the vulnerability is trivial to trigger once understood, (3) Limited confidentiality impact but high availability impact from potential system takeover, (4) Public disclosure and active exploitation reducing the window of opportunity for defenders. The score accurately captures the acute threat posed by a publicly-disclosed, remotely-exploitable code execution flaw in a web application library.

Frequently asked questions