The Betheme plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the plugin's custom JS functionality in all versions up to, and including, 27.6.1 due to insufficient input sanitization and output escaping on user supplied attributes. This makes it possible for authenticated attackers, with contributor-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.
This vulnerability has a CVSS score of 6.4, indicating a medium severity level. The risk to organizations includes potential unauthorized script execution, leading to compromised user accounts or data leakage. Given the nature of the vulnerability, organizations should prioritize patching immediately.
As of now, there are no known exploits or public proof-of-concept (PoC) available for this vulnerability. However, the lack of known exploits does not diminish the importance of addressing this issue promptly. The longer organizations delay remediation, the higher the risk they face from potential exploitation.
Organizations using the Betheme plugin should assess their current versions and apply the necessary updates to mitigate this vulnerability. Continuous monitoring and security assessments are also recommended to identify any similar weaknesses in web applications.
Vulnerability Details
The Betheme plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the plugin's custom JS functionality in all versions up to, and including, 27.6.1 due to insufficient input sanitization and output escaping on user supplied attributes. This makes it possible for authenticated attackers, with contributor-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.
The CVSS score for this vulnerability is 6.4, categorized as medium severity. The attack vector is classified as NETWORK, with low complexity and requiring low privileges, meaning that an attacker does not need significant access to exploit this vulnerability. The potential impacts include low confidentiality and integrity impact, with no availability impact.
The vulnerability is identified under CWE-79, which relates to improper neutralization of input during web page generation. This indicates that user input is not adequately sanitized, allowing for the injection of malicious scripts.
Technical Analysis
The root cause of this vulnerability stems from insufficient input sanitization and output escaping on user-supplied attributes in the Betheme plugin. This allows for the injection of arbitrary JavaScript code by authenticated users with sufficient privileges.
The attack vector for this vulnerability is network-based, meaning that an attacker can exploit it over the internet. The attack complexity is low, as it does not require specialized skills to exploit, and the privileges required are low, allowing even users with contributor-level access to perform the attack.
User interaction is not required for the exploitation of this vulnerability. The confidentiality impact is low, as it may allow an attacker to view or interact with data, while the integrity impact is also low, allowing for the modification of data. There is no availability impact.
Risk & Impact Analysis
The risk to organizations includes the potential for unauthorized access to user data, defacement of web pages, and other malicious actions that could lead to a loss of user trust. Given the widespread use of WordPress plugins, the blast radius for exploitation could be significant, affecting many users and systems.
Organizations should assess their exposure to this vulnerability and consider the potential impact on their operations and reputation. The availability of this vulnerability in all versions up to 27.6.1 heightens the urgency for organizations to implement updates and patches as soon as possible.
As this vulnerability does not currently appear in the KEV catalog, the immediate exploitation risk may be lower, but this could change. Security teams should monitor for any changes in the status of this vulnerability and assess their defenses accordingly.
Exploitation Status
Signal | Status |
|---|---|
Known Exploit | No |
Public PoC | No |
Actively Exploited | No |
Ransomware Use | No |
Affected Versions
The affected versions of the Betheme plugin for WordPress are all versions up to, and including, 27.6.1. Organizations should ensure that they are running the latest version to avoid exposure to this vulnerability.
Mitigation & Remediation
Organizations should prioritize patching the Betheme plugin for WordPress to the latest version available from Muffingroup. If immediate patching is not possible, consider implementing workarounds such as disabling custom JS functionality until the patch can be applied.
Additionally, organizations should perform a thorough review of their security configurations and ensure that user access levels are managed appropriately to limit exposure to this vulnerability.
Security assessments can help identify similar weaknesses in applications.
Detection Guidance
To detect potential exploitation of this vulnerability, organizations should monitor logs for any unusual user activity, particularly from authenticated users with contributor-level access and above.
Behavioral anomalies in user interactions with the website can also indicate attempts to exploit this vulnerability. Implementing web application firewalls (WAF) may help mitigate such attacks.
AppSecure Threat Intelligence Insight
The significance of this vulnerability lies in its ability to allow for script injection, which can have far-reaching consequences for user data and trust in web applications. As observed in previous incidents, vulnerabilities in widely-used plugins can quickly become targets for attackers.
Security teams should learn from this incident by conducting regular security assessments and staying updated on vulnerabilities affecting their technology stack.
To enhance security posture, organizations can refer to our comprehensive guide on penetration testing methodologies and implement best practices.
Organizations are encouraged to consider vulnerability management programs as a strategic approach to enhance their security posture.
In conclusion, CVE-2025-0450 serves as a reminder of the importance of secure coding practices and the need for ongoing vigilance in web application security.
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.
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