CVE-2025-1561 is a stored Cross-Site Scripting vulnerability classified under CWE-79, affecting the AppPresser – Mobile App Framework plugin for WordPress, maintained by scottopolis. The vulnerability exists in all versions up to and including 4.4.10 due to inadequate sanitization of the 'title' parameter and improper escaping of output during web page generation. This flaw allows unauthenticated attackers to inject arbitrary JavaScript code into pages that log this parameter, which then executes in the context of any user who views the affected page. The vulnerability is remotely exploitable without any authentication or user interaction, increasing its risk profile. The CVSS v3.1 base score is 7.2 (High), with vector AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N, indicating network attack vector, low attack complexity, no privileges or user interaction required, and a scope change that affects confidentiality and integrity but not availability. Exploitation could lead to theft of session cookies, defacement, or further attacks such as privilege escalation or malware delivery. No patches or official fixes are currently linked, and no known exploits have been reported in the wild as of the publication date. The vulnerability impacts all installations of the plugin, which is widely used to create mobile apps integrated with WordPress sites, thus affecting a broad range of organizations relying on this framework for mobile app development.

The impact of CVE-2025-1561 is significant for organizations using the AppPresser plugin, as successful exploitation can lead to unauthorized script execution in users' browsers. This can result in session hijacking, credential theft, unauthorized actions performed on behalf of users, and potential spread of malware. Since the vulnerability is stored XSS, injected scripts persist and affect multiple users, increasing the attack surface. The confidentiality and integrity of user data and application state are at risk, although availability is not directly impacted. Organizations with customer-facing mobile apps or WordPress sites using this plugin may suffer reputational damage, regulatory penalties if user data is compromised, and operational disruptions. The ease of exploitation without authentication or user interaction makes this vulnerability attractive to attackers, including automated bots and opportunistic threat actors. The lack of known exploits currently limits immediate widespread impact but does not reduce the urgency of mitigation due to the high potential damage.

To mitigate CVE-2025-1561, organizations should immediately update the AppPresser plugin to a patched version once available. In the absence of an official patch, apply manual mitigations such as implementing strict input validation and sanitization on the 'title' parameter at the application level, ensuring all user-supplied data is properly escaped before rendering in HTML contexts. Employ Content Security Policy (CSP) headers to restrict the execution of unauthorized scripts and reduce the impact of XSS attacks. Monitor web server and application logs for unusual input patterns or script injections related to the 'title' parameter. Disable or restrict logging features that capture user input if they contribute to the vulnerability. Conduct regular security assessments and penetration testing focusing on input handling in the plugin. Educate developers and administrators about secure coding practices and the risks of stored XSS. Finally, consider implementing Web Application Firewalls (WAFs) with rules designed to detect and block XSS payloads targeting this plugin.