WordPress WP-Stats Plugin Stored XSS Vulnerability

The WP-Stats plugin for WordPress is vulnerable to Stored Cross-Site Scripting in all versions up to, and including, 2.56 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.

Casky was already ahead

This CVE exploits attack patterns that Casky's 322matched 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

The WP-Stats WordPress plugin contains a Stored Cross-Site Scripting (XSS) vulnerability affecting all versions through 2.56, stemming from insufficient input sanitization and output escaping. This vulnerability allows unauthenticated attackers to inject malicious JavaScript code that persists in the database and executes whenever any user views the compromised page. With a CVSS score of 7.2, this poses a significant risk to WordPress site administrators and their users. Any website running the vulnerable plugin becomes an attack vector for credential theft, malware distribution, session hijacking, and defacement. The lack of authentication requirements means attackers can exploit this without legitimate access, making it particularly dangerous for public-facing WordPress installations.

Casky's 322 matched security skills leverage Claude AI's extended reasoning to map this vulnerability against MITRE ATT&CK techniques TA0001 (Initial Access) and TA0043 (Reconnaissance). Practitioners using Casky would identify attack patterns including: detection of suspicious input parameters in WP-Stats plugin requests, recognition of script tag injections and encoded payloads in stored data, monitoring of DOM manipulation indicators, and tracking of cookie exfiltration attempts post-injection. The platform's skill correlation enables practitioners to see how attackers move from reconnaissance to initial access exploitation, detect persistent XSS payload delivery mechanisms, and correlate malicious script execution with downstream C2 communications or credential harvesting, allowing for comprehensive threat hunting across their WordPress infrastructure.

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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 →

322 Casky skills cover this attack pattern

These skills use Claude AI's reasoning model to surface findings in the same attack categories as CVE-2026-19794.

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-2026-19794

Casky has 322 skills that investigate the attack patterns behind CVE-2026-19794. Run one and get CVSS-scored findings in 3 minutes.

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