CVE-2025-23734

High

Published: 24 January 2025

Published

24 January 2025

Modified

23 April 2026

KEV Added

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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 0.0021 43.0th percentile

Risk Priority 14 60% EPSS · 20% KEV · 20% CVSS

Summary

CVE-2025-23734 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 43.0th 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-2025-23734 is an Improper Neutralization of Input During Web Page Generation vulnerability, classified as Reflected Cross-site Scripting (XSS) under CWE-79, in the Gigaom Sphinx go-sphinx WordPress plugin by Casey Bisson. The issue affects versions from n/a through 0.1 inclusive, allowing malicious input to be reflected in web page generation without proper neutralization.

The vulnerability 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), indicating network accessibility, low attack complexity, no required privileges, and user interaction such as clicking a crafted link. Remote attackers can exploit it to execute scripts in victims' browsers, achieving low impacts on confidentiality, integrity, and availability with a changed scope.

Patchstack's advisory at https://patchstack.com/database/Wordpress/Plugin/go-sphinx/vulnerability/wordpress-gigaom-sphinx-plugin-0-1-reflected-cross-site-scripting-xss-vulnerability?_s_id=cve provides details on the vulnerability in the WordPress Gigaom Sphinx plugin version 0.1.

EU & UK References

🇪🇺 ENISA EUVD: EUVD-2025-3379

Vulnerability details

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in Casey Bisson Gigaom Sphinx go-sphinx allows Reflected XSS.This issue affects Gigaom Sphinx: from n/a through <= 0.1.

CWE(s): CWE-79

Related Threats

MITRE ATT&CK Enterprise TechniquesAI

T1190 Exploit Public-Facing Application Initial Access

Adversaries may attempt to exploit a weakness in an Internet-facing host or system to initially access a network.

attack.mitre.org →

T1059.007 JavaScript Execution

Adversaries may abuse various implementations of JavaScript for execution.

attack.mitre.org →

Why these techniques?

The reflected XSS vulnerability in the public-facing WordPress plugin allows remote attackers to execute arbitrary JavaScript in victims' browsers via crafted links, directly enabling T1190 for exploiting the application and T1059.007 for JavaScript execution.

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