CVE-2018-10032 in CMS Made Simple
Summary
by MITRE
CMS Made Simple (aka CMSMS) 2.2.7 has Reflected XSS in admin/moduleinterface.php via the m1_version parameter.
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Analysis
by VulDB Data Team • 01/24/2020
The vulnerability CVE-2018-10032 represents a reflected cross-site scripting flaw discovered in CMS Made Simple version 2.2.7 within the admin/moduleinterface.php script. This security weakness specifically manifests through the m1_version parameter, which fails to properly sanitize user input before incorporating it into web responses. The flaw exists in the administrative interface of the content management system, making it particularly concerning as it targets privileged users who have access to the backend management tools. Reflected XSS vulnerabilities occur when malicious input is immediately returned by a web application without proper validation or encoding, allowing attackers to inject malicious scripts that execute in the context of a victim's browser session.
The technical implementation of this vulnerability stems from inadequate input validation and output encoding practices within the module interface handling functionality. When administrators navigate to the module interface page and interact with parameters containing unvalidated input, the application fails to properly escape or filter the m1_version parameter before rendering it in HTML responses. This creates an opportunity for attackers to craft malicious URLs containing script payloads that, when executed in an administrator's browser, can perform actions such as stealing session cookies, redirecting to malicious sites, or executing unauthorized administrative commands. The vulnerability falls under CWE-79 which specifically addresses cross-site scripting flaws in web applications.
The operational impact of this vulnerability extends beyond simple script execution as it provides attackers with a potential pathway to escalate privileges and compromise the entire CMS environment. An attacker who successfully exploits this vulnerability can gain unauthorized access to the administrative interface, potentially leading to full system compromise including content manipulation, user account takeover, or installation of backdoors. The reflected nature of the vulnerability means that attacks can be delivered through phishing emails, compromised websites, or social engineering tactics where administrators are tricked into clicking malicious links. This makes the vulnerability particularly dangerous in environments where administrators frequently click on links from external sources or where security awareness is limited.
Mitigation strategies for CVE-2018-10032 should focus on immediate patching of the CMS Made Simple installation to version 2.2.8 or later, which contains the necessary fixes for the reflected XSS vulnerability. Organizations should also implement input validation and output encoding measures at the application level, ensuring that all parameters passed to administrative interfaces are properly sanitized before being rendered in web responses. Network-level protections such as web application firewalls can provide additional defense-in-depth measures, though they should not replace proper application-level fixes. Security monitoring should include detection of suspicious parameter values in administrative interfaces, and regular security assessments should be conducted to identify similar vulnerabilities in other components of the CMS ecosystem. The ATT&CK framework categorizes this vulnerability under T1059.007 for scripting and T1566 for spearphishing with links, highlighting the multi-stage attack pattern that can emerge from such reflected XSS flaws.