CVE-2025-26997

Vulnerability

Overview

The Wireless Butler WordPress theme (versions up to and including 1.0.11) contains a reflected Cross-Site Scripting (XSS) vulnerability caused by improper neutralization of input during web page generation [1]. This flaw, catalogued as CVE-2025-26997, has a CVSS v3 score of 7.1 (High) and is expected to be exploited in mass campaigns targeting websites regardless of size [1].

Exploitation

Details

Attackers can exploit this vulnerability by crafting a malicious link that, when clicked by a privileged user (e.g., an admin), triggers the execution of injected scripts. The attack requires user interaction — the victim must click a crafted URL, visit a specially prepared page, or submit a manipulated form [1]. The attacker does not need prior authentication but depends on enticing a legitimate user with sufficient privileges to act.

Impact

Successful exploitation could allow a malicious actor to inject arbitrary HTML and JavaScript into the victim's browser session. This can be used to redirect visitors, display advertisements, steal session tokens, or perform other actions within the security context of the vulnerable site [1]. Because the vulnerability is reflected, the injected payload is not stored on the server, but it can still be delivered to users via phishing links.

Mitigation

Status

Users are strongly advised to update the Wireless Butler theme to a patched version immediately. For those unable to update, Patchstack offers a mitigation rule that blocks attacks until an official patch is released and safely applied [1].