CVE-2025-1306 in Newscrunch Plugin
Summary
by MITRE • 03/04/2025
The Newscrunch theme for WordPress is vulnerable to Cross-Site Request Forgery in all versions up to, and including, 1.8.4. This is due to missing or incorrect nonce validation on the newscrunch_install_and_activate_plugin() function. This makes it possible for unauthenticated attackers to upload arbitrary files via a forged request granted they can trick a site administrator into performing an action such as clicking on a link.
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Analysis
by VulDB Data Team • 03/04/2025
The vulnerability identified as CVE-2025-1306 affects the Newscrunch theme for WordPress, specifically targeting versions up to and including 1.8.4. This represents a critical security flaw that undermines the integrity of WordPress installations using this theme. The vulnerability stems from insufficient validation mechanisms within the theme's core functionality, creating an avenue for malicious actors to exploit the system's trust model. The flaw exists within the newscrunch_install_and_activate_plugin() function, which fails to properly implement nonce validation, a fundamental security measure that ensures requests originate from legitimate sources within the WordPress ecosystem. This absence of proper authentication checks creates a dangerous exposure that can be leveraged by attackers to manipulate the theme's plugin installation and activation processes.
The technical implementation of this vulnerability aligns with CWE-352, which specifically addresses Cross-Site Request Forgery weaknesses in web applications. The missing nonce validation creates a scenario where an attacker can construct malicious requests that appear legitimate to the WordPress system. When an administrator interacts with a forged request, typically through clicking on a malicious link or visiting a compromised webpage, the system processes the request without proper verification of the user's intent. This allows unauthorized file uploads and plugin installations that can fundamentally alter the site's functionality and security posture. The vulnerability exploits the trust relationship between the WordPress admin interface and legitimate requests, bypassing normal access controls that should prevent unauthorized modifications.
The operational impact of this vulnerability extends beyond simple file uploads, as it provides attackers with potential pathways to establish persistent access to affected WordPress installations. Once an attacker successfully uploads malicious files through the forged request mechanism, they can potentially execute arbitrary code on the server, escalate privileges, or install backdoors that maintain access even after the initial exploit. This vulnerability particularly affects WordPress administrators who may be tricked into clicking malicious links, making it a significant concern for sites that rely on administrator interaction for theme updates or plugin management. The attack vector leverages social engineering techniques where administrators are coerced into performing actions that trigger the vulnerability, making it particularly dangerous in environments where security awareness may be limited.
Mitigation strategies for CVE-2025-1306 should prioritize immediate theme updates to versions that address the nonce validation issue, as recommended by the WordPress security team. Organizations should implement additional security layers including enhanced administrator training on recognizing phishing attempts and suspicious links, as well as network monitoring to detect unusual file upload activities. The implementation of Content Security Policy headers and additional request validation mechanisms can provide defense-in-depth against similar vulnerabilities. Security teams should also conduct thorough audits of all installed themes and plugins to identify potential similar flaws, particularly focusing on functions that handle plugin installations or file uploads. According to ATT&CK framework, this vulnerability maps to T1059.001 for command and scripting interpreter and T1566 for phishing techniques, emphasizing the need for both technical and user-based defenses. Regular security assessments and maintaining updated security tooling are essential for preventing exploitation of such vulnerabilities in production environments.