CVE-2026-62013 in Edge Decor Plugin
Summary
by MITRE • 10/29/2026
Unauthenticated PHP Object Injection in Edge Decor <= 2.9 versions.
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Analysis
by VulDB Data Team • 10/29/2026
The vulnerability identified as an unauthenticated PHP object injection flaw within the Edge Decor plugin, specifically affecting versions up to and including 2.9, represents a critical security deficiency that allows attackers to execute arbitrary code on the target server without requiring valid credentials. This type of vulnerability arises from the improper handling of user-supplied input during the deserialization process in PHP applications. When an application accepts data from external sources such as HTTP requests or cookies and passes it directly into functions like unserialize() without adequate validation, sanitization, or integrity checks, it creates a pathway for malicious actors to inject crafted serialized objects. In the context of Edge Decor, this flaw likely stems from a lack of strict type checking or whitelisting mechanisms that would restrict deserialization to trusted classes only, thereby exposing the application's internal state and logic to manipulation by any unauthenticated user accessing the vulnerable endpoint.
From a technical perspective, PHP object injection exploits the way PHP handles class instantiation during deserialization. If an attacker can control the input passed to unserialize(), they may be able to instantiate arbitrary objects with controlled properties. This capability is particularly dangerous because it allows for Remote Code Execution (RCE) if certain "gadget chains" are present within the application or its dependencies. A gadget chain consists of a sequence of existing classes and methods that, when triggered through object manipulation, lead to the execution of system commands. Since this vulnerability is unauthenticated, the attack surface is significantly expanded as any internet-facing user can attempt exploitation without needing to bypass login mechanisms or steal session tokens first. This lowers the barrier for entry considerably, enabling automated scanning tools and opportunistic attackers to compromise the underlying web server infrastructure with minimal effort.
The operational impact of successfully exploiting this vulnerability extends far beyond simple data access. An attacker who achieves remote code execution can take full control of the compromised system. This includes reading sensitive configuration files that contain database credentials or API keys, modifying website content to deface pages or inject malicious scripts for cross-site scripting attacks against visitors, and using the server as a pivot point to launch further attacks against internal network resources. Additionally, persistent backdoors such as web shells can be installed, ensuring long-term access even if the initial vulnerability is patched later. The integrity of the entire application ecosystem is compromised, leading to potential data breaches, loss of customer trust, regulatory non-compliance under standards like GDPR or HIPAA depending on the nature of stored data, and significant financial losses due to downtime and remediation efforts.
To mitigate this risk, immediate action must be taken by upgrading Edge Decor to a version newer than 2.9 where the vulnerability has been addressed by the developers through proper input validation and secure deserialization practices. If an upgrade is not immediately feasible, temporary mitigations should include implementing strict allowlists for any serialized data processing or disabling specific functions if possible via server configuration. Furthermore, deploying a Web Application Firewall (WAF) with rules tuned to detect common PHP object injection patterns can provide a layer of defense against exploitation attempts while permanent fixes are applied. It is also crucial to review the application's codebase for other instances of unsafe deserialization and ensure that all third-party dependencies are updated to their latest secure versions, as these often contain similar vulnerabilities or serve as potential components in gadget chains. Regular security audits and static analysis tools should be integrated into the development lifecycle to prevent such flaws from being introduced in future releases.