Cyber Resilience

CVE-2025-23610

High

Published: 22 January 2025

Published
22 January 2025
Modified
23 April 2026
KEV Added
—
Patch
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CVSS Score v3.1 7.1 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:L
EPSS Score 0.0034 57.4th percentile
Risk Priority 14 60% EPSS · 20% KEV · 20% CVSS

Summary

CVE-2025-23610 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 Drive-by Compromise (T1189); 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-2025-23610 is an Improper Neutralization of Input During Web Page Generation vulnerability, classified as Reflected Cross-site Scripting (XSS) under CWE-79, in the Tehsmash Ultimate Events WordPress plugin (ultimate-events). This issue affects all versions from n/a through 1.3.3, as documented in the CVE published on 2025-01-22.

The vulnerability has 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 exploitation over the network with low attack complexity, no required privileges, but needing user interaction and resulting in a changed scope. Unauthenticated remote attackers can exploit it by tricking users into interacting with maliciously crafted input reflected in web pages, achieving low impacts on confidentiality, integrity, and availability.

Mitigation details are available in the Patchstack advisory at https://patchstack.com/database/Wordpress/Plugin/ultimate-events/vulnerability/wordpress-ultimate-events-plugin-1-3-3-reflected-cross-site-scripting-xss-vulnerability?_s_id=cve.

EU & UK References

Vulnerability details

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in Tehsmash Ultimate Events ultimate-events allows Reflected XSS.This issue affects Ultimate Events: from n/a through <= 1.3.3.

CWE(s)
CWE-79

Related Threats

MITRE ATT&CK Enterprise TechniquesAI

T1189 Drive-by Compromise Initial Access
Adversaries may gain access to a system through a user visiting a website over the normal course of browsing.
attack.mitre.org →
T1566.002 Spearphishing Link Initial Access
Adversaries may send spearphishing emails with a malicious link in an attempt to gain access to victim systems.
attack.mitre.org →
T1204.001 Malicious Link Execution
An adversary may rely upon a user clicking a malicious link in order to gain execution.
attack.mitre.org →
Why these techniques?

Reflected XSS enables crafted malicious links to execute JS in victim browsers, directly facilitating drive-by compromise, spearphishing links, and user execution of malicious content.

Confidence: HIGH · MITRE ATT&CK Enterprise v18.1

CVEs Like This One

CVE-2025-67964Shared CWE-79
CVE-2026-24752Shared CWE-79
CVE-2025-23652Shared CWE-79
CVE-2026-34375Shared CWE-79
CVE-2026-28100Shared CWE-79
CVE-2025-23857Shared CWE-79
CVE-2025-22575Shared CWE-79
CVE-2025-28903Shared CWE-79
CVE-2026-32494Shared CWE-79
CVE-2025-24598Shared CWE-79

Affected Assets

Mitigating Controls

Mitigating Controls (NIST 800-53 r5) AI

SI-15 Information Output Filtering good match
prevent

Directly addresses reflected XSS by filtering web page outputs to neutralize malicious scripts from untrusted user inputs in the Ultimate Events plugin.

SI-10 Information Input Validation good match
prevent

Validates information inputs to the plugin, preventing improper processing of malicious payloads that could be reflected as executable scripts.

SI-2 Flaw Remediation good match
prevent

Ensures timely identification, reporting, and patching of the specific XSS flaw affecting Ultimate Events plugin versions through 1.3.3.

References