CVE-2024-49276

Vulnerability

The Clio Grow plugin for WordPress versions up to and including 1.0.2 contains a reflected Cross-Site Scripting (XSS) vulnerability. The plugin improperly neutralizes user input during web page generation, allowing an attacker to inject arbitrary HTML and JavaScript into pages.

Exploitation

The vulnerability can be exploited without authentication, but requires user interaction. An attacker could craft a malicious link or form that, when clicked or submitted by an administrator or other user, triggers the injection. The reflected nature means the payload is echoed back in the server response and executed in the victim's browser.

Impact

Successful exploitation enables an attacker to execute malicious scripts in the context of the victim's session. This could lead to actions such as redirecting users to malicious sites, injecting advertisements, or stealing sensitive information. Given the moderate danger and potential for mass exploitation, this vulnerability is highlighted as one to prioritize.

Mitigation

The vulnerability has been patched in version 1.0.3. Users are urged to update immediately. For those unable to update, Patchstack offers a mitigation rule to block attacks until the plugin can be updated. The vulnerability is listed as potentially exploitable in mass campaigns, so prompt action is recommended [1].