Cyber Resilience

CVE-2025-22355

High

Published: 07 January 2025

Published
07 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 0.0024 47.7th percentile
Risk Priority 14 60% EPSS · 20% KEV · 20% CVSS

Summary

CVE-2025-22355 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 47.7th 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-2025-22355 is an Improper Neutralization of Input During Web Page Generation vulnerability, classified as Reflected Cross-site Scripting (XSS) under CWE-79, in the Kikx Simple Post Author Filter WordPress plugin (sa-post-author-filter). This issue affects all versions of the plugin from n/a through 1.0 inclusive.

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 malicious link. Remote attackers can exploit it by injecting malicious payloads into web pages generated by the plugin, leading to script execution in the context of a victim's browser. This enables potential theft of session cookies, keystroke logging, or page defacement, with low impacts to confidentiality, integrity, and availability but changed scope.

Patchstack documents this vulnerability in their WordPress plugin database, highlighting the Reflected XSS risk in Kikx Simple Post Author Filter version 1.0.

EU & UK References

Vulnerability details

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in asokaaso2 Kikx Simple Post Author Filter sa-post-author-filter allows Reflected XSS.This issue affects Kikx Simple Post Author Filter: from n/a through <= 1.0.

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 →
Why these techniques?

Reflected XSS in public-facing WordPress plugin directly enables exploitation of a web application vulnerability for initial access and client-side script execution.

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

CVEs Like This One

CVE-2021-47873Shared CWE-79
CVE-2026-7052Shared CWE-79
CVE-2024-56060Shared CWE-79
CVE-2025-49043Shared CWE-79
CVE-2026-40038Shared CWE-79
CVE-2024-56022Shared CWE-79
CVE-2025-68889Shared CWE-79
CVE-2026-1074Shared CWE-79
CVE-2025-22539Shared CWE-79
CVE-2025-22286Shared CWE-79

Affected Assets

Mitigating Controls

Mitigating Controls (NIST 800-53 r5) AI

SI-15 Information Output Filtering good match
prevent

Information Output Filtering directly prevents reflected XSS by encoding or filtering untrusted inputs reflected in web page generation by the plugin.

SI-10 Information Input Validation good match
prevent

Information Input Validation blocks malicious payloads at entry, mitigating improper neutralization exploited in the plugin's post author filter.

SI-2 Flaw Remediation good match
prevent

Flaw Remediation addresses the specific vulnerability by patching or removing the affected Kikx Simple Post Author Filter plugin versions up to 1.0.

References