Reflected XSS in UpSolution Core Input Handling

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in UpSolution UpSolution Core us-core allows Reflected XSS.This issue affects UpSolution Core: from n/a through 8.44.

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

UpSolution Core versions through 8.44 contain a Reflected Cross-Site Scripting (XSS) vulnerability stemming from improper input neutralization during web page generation. This CWE-79 flaw allows attackers to inject malicious scripts into user-controlled input that gets reflected back in HTTP responses without proper sanitization. Organizations deploying UpSolution Core are immediately affected, as reflected XSS can enable session hijacking, credential theft, and malware distribution when victims click attacker-crafted links. The vulnerability is particularly dangerous because it requires no backend compromise—attackers simply need to socially engineer users into clicking malicious URLs, making it a low-barrier attack vector for initial access and reconnaissance.

Casky's 323 matched security skills leverage Claude AI's extended reasoning to detect the attack patterns underlying this vulnerability across TA0001 (Initial Access) and TA0043 (Reconnaissance) techniques. Practitioners using Casky would observe findings that flag suspicious input reflection patterns—where user-supplied parameters appear unencoded in HTML responses—and identify opportunities for script injection. The platform's skills map input validation gaps, output encoding failures, and DOM-based sink behaviors to MITRE ATT&CK, helping teams understand how reflected XSS chains into phishing campaigns (TA0001) and reconnaissance activities (TA0043). Security teams gain visibility into malicious payload signatures, user-agent anomalies in attack traffic, and behavioral patterns that precede exploitation, enabling proactive defense before UpSolution Core instances are compromised.

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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-2026-94166.

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

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