CVE-2025-23606
Published: 22 January 2025
Summary
CVE-2025-23606 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 42.8% 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-15 (Information Output Filtering) and SI-2 (Flaw Remediation).
Threat & Defense at a Glance
Threat & Defense Details
Mitigating Controls (NIST 800-53 r5)AI
Directly mitigates reflected XSS by requiring filtering of user input before inclusion in dynamically generated web pages.
Addresses reflected XSS by validating and sanitizing untrusted inputs to block malicious script payloads.
Ensures timely remediation of the specific flaw in Calendi plugin versions through patching and vulnerability correction.
MITRE ATT&CK Enterprise TechniquesAI
Why these techniques?
Reflected XSS in public-facing WordPress plugin enables exploitation of public-facing applications (T1190) via malicious links (T1204.001) to execute arbitrary JavaScript (T1059.007) in victim's browser.
NVD Description
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in sebkay Calendi calendi allows Reflected XSS.This issue affects Calendi: from n/a through <= 1.1.1.
Deeper analysisAI
CVE-2025-23606 is an Improper Neutralization of Input During Web Page Generation vulnerability, classified as Reflected Cross-site Scripting (XSS) under CWE-79, in the Calendi WordPress plugin by sebkay. This issue affects Calendi versions from n/a through 1.1.1 inclusive. The vulnerability was published on 2025-01-22 and 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).
Attackers can exploit this vulnerability remotely over the network with low attack complexity and no required privileges, though it necessitates user interaction, such as visiting a maliciously crafted link or page. Upon successful exploitation, adversaries can inject and execute arbitrary scripts in the context of the victim's browser on the affected site, achieving low impacts to confidentiality, integrity, and availability while changing the scope of the impact.
The Patchstack advisory (https://patchstack.com/database/Wordpress/Plugin/calendi/vulnerability/wordpress-calendi-plugin-1-1-1-reflected-cross-site-scripting-xss-vulnerability?_s_id=cve) documents the Reflected XSS vulnerability specifically in Calendi plugin version 1.1.1 for WordPress.
Details
- CWE(s)