CVE-2025-48296

Vulnerability

Description

CVE-2025-48296 is a Reflected Cross-Site Scripting (XSS) vulnerability in the WordPress UpStore theme by skygroup, affecting versions from n/a through 1.7.0. The issue stems from improper neutralization of user input during web page generation, allowing an attacker to inject arbitrary HTML and JavaScript code into web pages. This type of flaw occurs when input is reflected back to the user without proper sanitization or encoding.

Exploitation

Exploitation of this vulnerability requires user interaction — a privileged user must perform an action such as clicking a malicious link or submitting a crafted form. The attacker does not need prior authentication but must entice a privileged user (e.g., an administrator) to interact with a specially crafted URL or payload. Once the user triggers the request, the injected script executes in the context of the victim's browser session, targeting the affected WordPress site.

Impact

Successful exploitation enables a malicious actor to inject malicious scripts, including redirects, advertisements, and other HTML payloads, into the website. These scripts execute when visitors access the site, potentially leading to data exfiltration, session hijacking, or further compromise of the site's integrity and user trust. The CVSS v3 score of 7.1 reflects the moderate to high risk, and the vulnerability is considered likely to be used in mass-exploit campaigns against thousands of websites.

Mitigation

The vendor has released version 1.7.1 to resolve the vulnerability. Users are advised to update to 1.7.1 or later immediately. For those unable to update, Patchstack has issued a mitigation rule to block attacks until a patched version is applied. Given the active threat landscape, prompt action is recommended to protect affected WordPress sites. [1]