CVE-2025-67949
Published: 22 January 2026
Summary
CVE-2025-67949 is a high-severity Cross-site Scripting (CWE-79) vulnerability. Its CVSS base score is 7.1 (High).
Operationally, exploitation aligns with the MITRE ATT&CK technique Exploit Public-Facing Application (T1190); ranked at the 20.3th percentile by exploit likelihood (below the median); it is not currently listed in the CISA KEV catalog.
The strongest mitigations our analysis identified are NIST 800-53 SI-10 (Information Input Validation) and SI-15 (Information Output Filtering).
Deeper analysis
CVE-2025-67949 is an Improper Neutralization of Input During Web Page Generation vulnerability, classified as CWE-79, enabling Reflected Cross-Site Scripting (XSS) in the Hostiko WordPress theme developed by designingmedia. This flaw affects all versions of the Hostiko theme from n/a through those prior to 94.3.6. The vulnerability carries a CVSS v3.1 base score of 7.1 (AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:L), indicating high severity due to its network accessibility, low attack complexity, lack of required privileges, and scope change despite requiring user interaction and low individual impacts on confidentiality, integrity, and availability.
Remote attackers without privileges can exploit this vulnerability by crafting malicious payloads delivered via network-accessible inputs, such as URLs, that trick authenticated users into interacting with them, for example by clicking a link. Successful exploitation results in reflected XSS execution within the victim's browser context, potentially allowing attackers to steal session cookies, perform actions on behalf of the user, or deface pages, with impacts spanning low confidentiality, integrity, and availability effects elevated by the cross-origin scope change.
The Patchstack advisory for this WordPress theme vulnerability recommends updating the Hostiko theme to version 94.3.6 or later, where the issue is addressed. No additional mitigations are detailed in the provided reference.
EU & UK References
- 🇪🇺 ENISA EUVD: EUVD-2026-4023
Vulnerability details
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in designingmedia Hostiko hostiko allows Reflected XSS.This issue affects Hostiko: from n/a through < 94.3.6.
- CWE(s)
Related Threats
MITRE ATT&CK Enterprise TechniquesAI
Why these techniques?
Reflected XSS in public-facing WordPress theme directly enables remote exploitation of the web app (T1190), arbitrary JS execution in browser (T1059.007), and theft/hijacking of web session cookies or user actions (T1539/T1185).
CVEs Like This One
Affected Assets
Mitigating Controls
Mitigating Controls (NIST 800-53 r5) AI
Directly requires validation of all inputs to reject or sanitize untrusted data such as reflected XSS payloads before they are processed into web page output.
Requires filtering and encoding of information outputs so that malicious scripts injected via URLs cannot be reflected and executed in user browsers.
Provides mechanisms to detect and block malicious code patterns (e.g., script tags) in web requests or responses associated with this reflected XSS flaw.