CVE-2025-24688
Published: 14 February 2025
Summary
CVE-2025-24688 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 32.1th 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-2025-24688 is an Improper Neutralization of Input During Web Page Generation vulnerability, classified as CWE-79, enabling Reflected Cross-site Scripting (XSS) in the WP Mailster WordPress plugin (wp-mailster) developed by brandtoss. This issue affects all versions of the plugin from n/a through 1.8.20.0, as published on 2025-02-14.
The vulnerability can be exploited by remote attackers with network access, requiring low attack complexity, no privileges, and user interaction such as visiting a malicious link. Exploitation reflects attacker-controlled input into web pages, allowing arbitrary JavaScript execution in the victim's browser context with a changed scope. This results in low impacts to confidentiality, integrity, and availability, yielding a CVSS v3.1 base score of 7.1 (High).
Mitigation details are available in the Patchstack advisory at https://patchstack.com/database/Wordpress/Plugin/wp-mailster/vulnerability/wordpress-wp-mailster-plugin-1-8-20-0-reflected-cross-site-scripting-xss-vulnerability?_s_id=cve.
EU & UK References
- 🇪🇺 ENISA EUVD: EUVD-2025-3882
Vulnerability details
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in brandtoss WP Mailster wp-mailster allows Reflected XSS.This issue affects WP Mailster: from n/a through <= 1.8.20.0.
- CWE(s)
Related Threats
MITRE ATT&CK Enterprise TechniquesAI
Why these techniques?
Reflected XSS vulnerability in public-facing WordPress plugin directly enables exploitation of public-facing applications via malicious links.
CVEs Like This One
Affected Assets
Mitigating Controls
Mitigating Controls (NIST 800-53 r5) AI
Directly prevents reflected XSS by filtering and encoding outputs to neutralize malicious scripts before web page generation.
Validates user inputs to reject or sanitize malicious payloads that could be reflected as executable JavaScript.
Ensures timely remediation of the specific XSS flaw in WP Mailster plugin versions through patching and testing.