CVE-2025-23556
Published: 03 March 2025
Summary
CVE-2025-23556 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 46.2th 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-2025-23556 is an Improper Neutralization of Input During Web Page Generation vulnerability, classified as Reflected Cross-site Scripting (XSS) under CWE-79, in the Push Envoy Notifications WordPress plugin by netbitsolutions. The flaw affects all versions from n/a through 1.0.0 and was published on 2025-03-03T14:15:41.180 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).
Attackers can exploit this vulnerability remotely over the network with low complexity and no required privileges, though it demands user interaction such as visiting a maliciously crafted link or page. Upon successful exploitation, the changed scope (S:C) allows injected scripts to execute in the victim's browser context, enabling low-level impacts on confidentiality, integrity, and availability, such as session token theft, phishing, or minor defacement within the affected user's session.
The Patchstack advisory at https://patchstack.com/database/Wordpress/Plugin/push-envoy/vulnerability/wordpress-push-envoy-notifications-plugin-1-0-0-cross-site-scripting-xss-vulnerability?_s_id=cve provides details on this WordPress plugin vulnerability, including recommended mitigations such as updating to a patched version if available or applying input sanitization workarounds.
EU & UK References
- 🇪🇺 ENISA EUVD: EUVD-2025-5708
Vulnerability details
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in netbitsolutions Push Envoy Notifications push-envoy allows Reflected XSS.This issue affects Push Envoy Notifications: from n/a through <= 1.0.0.
- 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 application (T1190) and facilitates arbitrary JavaScript execution in the victim's browser (T1059.007).
CVEs Like This One
Affected Assets
Mitigating Controls
Mitigating Controls (NIST 800-53 r5) AI
SI-15 requires filtering of information outputs to prevent injected scripts from executing in the victim's browser during reflected XSS exploitation.
SI-10 mandates validation of inputs to the web application, directly addressing the improper neutralization of input that enables this reflected XSS vulnerability.
SI-2 ensures timely identification, reporting, and patching of flaws like CVE-2025-23556 in the WordPress plugin, preventing exploitation.