CVE-2025-22499
Published: 13 January 2025
Summary
CVE-2025-22499 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 30.5th 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-2025-22499 is an Improper Neutralization of Input During Web Page Generation vulnerability, enabling Reflected Cross-site Scripting (XSS) as classified under CWE-79. It affects the FAKTOR VIER F4 Post Tree (f4-tree) WordPress plugin in all versions from n/a through 1.1.18.
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 network accessibility, low attack complexity, no required privileges, and user interaction such as clicking a malicious link. Remote attackers can exploit it by injecting malicious scripts into reflected user input on affected sites, executing arbitrary JavaScript in the victim's browser context with a changed scope, potentially compromising low levels of confidentiality, integrity, and availability.
Mitigation details are available in the Patchstack advisory at https://patchstack.com/database/Wordpress/Plugin/f4-tree/vulnerability/wordpress-f4-post-tree-plugin-1-1-18-reflected-cross-site-scripting-xss-vulnerability?_s_id=cve, which covers the Reflected XSS issue in the WordPress F4 Post Tree plugin up to version 1.1.18.
EU & UK References
- 🇪🇺 ENISA EUVD: EUVD-2025-2781
Vulnerability details
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in FAKTOR VIER F4 Post Tree f4-tree allows Reflected XSS.This issue affects F4 Post Tree: from n/a through <= 1.1.18.
- 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 browsers (T1059.007).
CVEs Like This One
Affected Assets
Mitigating Controls
Mitigating Controls (NIST 800-53 r5) AI
Directly remediates the specific flaw in F4 Post Tree plugin versions through 1.1.18 by requiring timely patching and vulnerability management.
Filters information output at web interfaces to neutralize malicious scripts in reflected user input during page generation, directly countering the XSS vulnerability.
Validates user inputs at entry points to reject or sanitize payloads that could be reflected as executable scripts in web pages.