Cyber Resilience

CVE-2025-27355

High

Published: 24 February 2025

Published
24 February 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 0.0006 20.3th percentile
Risk Priority 14 60% EPSS · 20% KEV · 20% CVSS

Summary

CVE-2025-27355 is a high-severity CSRF (CWE-352) 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 20.3th 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 SC-23 (Session Authenticity) and SI-10 (Information Input Validation).

Deeper analysis

CVE-2025-27355 is a Cross-Site Request Forgery (CSRF) vulnerability, classified under CWE-352, in the WooCommerce – Loi Hamon WordPress plugin developed by Nicolas GRILLET. The flaw enables Stored XSS and affects all versions from n/a through 1.1.0, as documented in the plugin's vulnerability profile.

Attackers without privileges can exploit this over the network with low attack complexity, though it requires user interaction and results in a changed scope. Successful exploitation via CSRF allows injection of Stored XSS payloads, leading to low impacts on confidentiality, integrity, and availability, with an overall CVSS v3.1 base score of 7.1 (AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:L).

The Patchstack advisory provides further details on the vulnerability, including assessment and recommended mitigations, accessible at https://patchstack.com/database/Wordpress/Plugin/loi-hamon/vulnerability/wordpress-woocommerce-loi-hamon-plugin-1-1-0-csrf-to-stored-xss-vulnerability?_s_id=cve.

EU & UK References

Vulnerability details

Cross-Site Request Forgery (CSRF) vulnerability in Nicolas GRILLET Woocommerce – Loi Hamon loi-hamon allows Stored XSS.This issue affects Woocommerce – Loi Hamon: from n/a through <= 1.1.0.

CWE(s)
CWE-352

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 →
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?

CSRF to Stored XSS in public-facing WordPress plugin directly enables exploitation of public-facing web applications (T1190), JavaScript execution via XSS payload (T1059.007), and user interaction via malicious link for CSRF trigger (T1204.001).

Confidence: HIGH · MITRE ATT&CK Enterprise v19.0

CVEs Like This One

CVE-2025-31613Shared CWE-352
CVE-2025-23677Shared CWE-352
CVE-2025-23497Shared CWE-352
CVE-2025-26569Shared CWE-352
CVE-2025-23537Shared CWE-352
CVE-2025-23870Shared CWE-352
CVE-2025-31569Shared CWE-352
CVE-2025-23577Shared CWE-352
CVE-2025-28931Shared CWE-352
CVE-2025-25121Shared CWE-352

Affected Assets

Mitigating Controls

Mitigating Controls (NIST 800-53 r5) AI

SC-23 Session Authenticity good match
prevent

SC-23 enforces session authenticity mechanisms like anti-CSRF tokens to directly prevent forged requests that exploit this CSRF vulnerability to inject stored XSS payloads.

SI-10 Information Input Validation good match
prevent

SI-10 requires validation of information inputs to sanitize and block malicious XSS scripts from being stored via the CSRF vector in the WooCommerce plugin.

SI-2 Flaw Remediation good match
prevent

SI-2 mandates timely flaw remediation, including patching the vulnerable WooCommerce – Loi Hamon plugin versions up to 1.1.0 to eliminate the CSRF-to-stored XSS vulnerability.

References