CVE-2025-23604
Published: 22 January 2025
Summary
CVE-2025-23604 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 in the top 42.6% of CVEs by exploit likelihood; 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-2025-23604 is an Improper Neutralization of Input During Web Page Generation vulnerability, classified as Stored Cross-site Scripting (XSS) under CWE-79, in the Rezdy Reloaded WordPress plugin by Maeve Lander. This issue affects all versions of the reloaded-rezdy plugin from n/a through 1.0.1 inclusive, as published on 2025-01-22 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).
Unauthenticated attackers (PR:N) with network access can exploit this stored XSS vulnerability through low-complexity attacks requiring user interaction, such as victims viewing affected web pages. Malicious input injected by the attacker is stored and improperly neutralized during page generation, enabling script execution in the browser context of other users and expanding scope to compromise low levels of confidentiality, integrity, and availability.
The Patchstack advisory at https://patchstack.com/database/Wordpress/Plugin/reloaded-rezdy/vulnerability/wordpress-rezdy-reloaded-plugin-1-0-1-cross-site-scripting-xss-vulnerability?_s_id=cve details the vulnerability in this WordPress plugin; practitioners should consult it for specific mitigation steps, such as applying available patches or updates beyond version 1.0.1.
EU & UK References
- 🇪🇺 ENISA EUVD: EUVD-2025-3279
Vulnerability details
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in Maeve Lander Rezdy Reloaded reloaded-rezdy allows Stored XSS.This issue affects Rezdy Reloaded: from n/a through <= 1.0.1.
- CWE(s)
Related Threats
MITRE ATT&CK Enterprise TechniquesAI
Why these techniques?
Stored XSS in public-facing WordPress plugin directly enables exploitation of public-facing applications via network injection (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
SI-15 directly mitigates stored XSS by filtering malicious scripts from information output during web page generation, preventing execution in victims' browsers.
SI-10 prevents the storage of malicious input by validating all user inputs against expected content, blocking XSS payloads before they are persisted.
SI-2 ensures timely identification, reporting, and patching of the specific flaw in the Rezdy Reloaded plugin, eliminating the root cause of the vulnerability.