CVE-2025-67933
Published: 08 January 2026
Summary
CVE-2025-67933 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 7.3th 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-2025-67933 is an Improper Neutralization of Input During Web Page Generation vulnerability, classified as Reflected Cross-site Scripting (XSS) under CWE-79, affecting the Taskbuilder WordPress plugin. The issue impacts Taskbuilder versions from n/a through 4.0.9 and was published on 2026-01-08T10:15:52.393.
With 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), the vulnerability can be exploited remotely by unauthenticated attackers with low attack complexity, though it requires user interaction such as clicking a malicious link. Successful exploitation changes the security scope, enabling limited impacts on confidentiality, integrity, and availability, typically through execution of arbitrary scripts in the victim's browser context.
Mitigation guidance is available in the Patchstack advisory at https://patchstack.com/database/Wordpress/Plugin/taskbuilder/vulnerability/wordpress-taskbuilder-plugin-4-0-9-cross-site-scripting-xss-vulnerability?_s_id=cve.
EU & UK References
- 🇪🇺 ENISA EUVD: EUVD-2026-1538
Vulnerability details
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in taskbuilder Taskbuilder taskbuilder allows Reflected XSS.This issue affects Taskbuilder: from n/a through <= 4.0.9.
- CWE(s)
Related Threats
MITRE ATT&CK Enterprise TechniquesAI
Why these techniques?
Reflected XSS in public-facing WordPress plugin directly enables remote exploitation of the web app (T1190) and arbitrary JavaScript execution in victim browser (T1059.007).
CVEs Like This One
Affected Assets
Mitigating Controls
Mitigating Controls (NIST 800-53 r5) AI
Directly requires validation and neutralization of untrusted input before it is used in web page generation, blocking the reflected XSS payload at its source.
Requires filtering or encoding of information output to users, preventing injected scripts from executing in the victim's browser context.
Provides malicious-code detection and blocking mechanisms (e.g., WAF rules or browser XSS filters) that can catch reflected script injection attempts.