Cyber Resilience

CVE-2025-26549

High

Published: 13 February 2025

Published
13 February 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 0.0010 26.5th percentile
Risk Priority 14 60% EPSS · 20% KEV · 20% CVSS

Summary

CVE-2025-26549 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 26.5th 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-2025-26549 is a Cross-Site Request Forgery (CSRF) vulnerability in the WP Html Page Sitemap WordPress plugin (wp-html-page-sitemap), affecting all versions from n/a through 2.2. Published on 2025-02-13, the flaw enables Stored Cross-Site Scripting (XSS) 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), mapped to CWE-352.

Unauthenticated attackers (PR:N) can exploit this over the network (AV:N) with low complexity (AC:L) by tricking victims into user interaction (UI:R), such as visiting a malicious site. The CSRF request injects malicious payloads into the sitemap, resulting in stored XSS with changed scope (S:C) and low impacts on confidentiality, integrity, and availability (C:L/I:L/A:L).

Patchstack provides details on the vulnerability and mitigation in its advisory at https://patchstack.com/database/Wordpress/Plugin/wp-html-page-sitemap/vulnerability/wordpress-wp-html-page-sitemap-plugin-2-2-csrf-to-stored-cross-site-scripting?_s_id=cve.

EU & UK References

Vulnerability details

Cross-Site Request Forgery (CSRF) vulnerability in pa1 WP Html Page Sitemap wp-html-page-sitemap allows Stored XSS.This issue affects WP Html Page Sitemap: from n/a through <= 2.2.

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 →
Why these techniques?

The CSRF-to-stored-XSS vulnerability in a public-facing WordPress plugin directly enables exploitation of public-facing applications.

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

CVEs Like This One

CVE-2024-37102Shared CWE-352
CVE-2024-37450Shared CWE-352
CVE-2025-23558Shared CWE-352
CVE-2025-68722Shared CWE-352
CVE-2025-31440Shared CWE-352
CVE-2025-23848Shared CWE-352
CVE-2025-22571Shared CWE-352
CVE-2024-53684Shared CWE-352
CVE-2025-23455Shared CWE-352
CVE-2025-22582Shared 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 such as anti-CSRF tokens, directly preventing unauthenticated attackers from forging requests to inject stored XSS payloads into the sitemap.

SI-10 Information Input Validation good match
prevent

SI-10 requires validation of all user inputs, blocking malicious XSS payloads from being accepted and stored via the CSRF vulnerability in the WordPress plugin.

SI-15 Information Output Filtering good match
prevent

SI-15 filters outputs to prevent execution of any stored malicious scripts injected through the CSRF-to-XSS vulnerability when sitemap content is rendered.

References