Unescaped User Input Enables Stored XSS in Restaurant Reviews Plugin

The Five Star Restaurant Reviews WordPress plugin before 2.3.14 does not properly escape a user-supplied value before outputting it into an HTML tag, allowing unauthenticated attackers to inject arbitrary web script that runs in the browser of anyone tricked into submitting a crafted request, including a logged-in administrator.

Casky was already ahead

This CVE exploits attack patterns that Casky's 323matched skills already investigate — long before this vulnerability was disclosed. Claude's reasoning model maps these techniques to MITRE ATT&CK, so practitioners who ran these skills have already seen the threat behaviour in their findings.

Analysis

CVE-2026-92412 is a cross-site scripting (XSS) vulnerability in the Five Star Restaurant Reviews WordPress plugin that fails to properly sanitize user-supplied input before rendering it in HTML. This allows unauthenticated attackers to inject malicious JavaScript that executes in the browsers of victims—including administrators—when they interact with crafted requests. Given WordPress's ubiquity and the plugin's accessibility to unauthenticated users, this vulnerability poses a significant risk to website integrity, user data theft, and potential lateral movement into site administration. Any WordPress site running the vulnerable plugin version is at risk, regardless of other security controls.

Casky's security skills framework maps this vulnerability to MITRE ATT&CK techniques TA0001 (Initial Access) and TA0043 (Reconnaissance), enabling practitioners to detect the attack chain comprehensively. When analyzing this CVE, Casky's extended reasoning identifies the injection point where unsanitized user input flows directly into HTML output—a hallmark of CWE-79. Practitioners using Casky will see findings aligned with reconnaissance activities (attackers probing for the vulnerable plugin) followed by initial access attempts through crafted XSS payloads. The platform's 323 relevant skills help security teams recognize both the exploitation pattern (malicious script injection) and the business logic flaw (missing input validation/output encoding), enabling detection rules for suspicious review submissions containing script tags and configuration recommendations for input sanitization enforcement.

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Casky Risk Score

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EPSS Probability

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Shodan Exposure

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GreyNoise Signal

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Composite risk scoring from EPSS, CISA KEV, Shodan, and GreyNoise — 21 security APIs correlated into a single Casky Risk Score. Coming in Casky Pro. Join early access →

323 Casky skills cover this attack pattern

These skills use Claude AI's reasoning model to surface findings in the same attack categories as CVE-2026-92412.

Abuse of Public-Facing API: Mobile API Abuse

mobile security · low

Run

abusing-dpapi-for-credential-access

red teaming · high

Run

abusing-shadow-credentials-for-privesc

red teaming · high

Run

MITRE ATT&CK Techniques

TA0001 TA0043

Investigate the attack patterns behind CVE-2026-92412

Casky has 323 skills that investigate the attack patterns behind CVE-2026-92412. Run one and get CVSS-scored findings in 3 minutes.

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