Stored XSS in ValeApp Enables Persistent Malicious Script Injection

Improper neutralization of input during web page generation ('cross-site scripting') vulnerability in OceanicSoft Informatics Systems Ltd. ValeApp allows Stored XSS. This issue affects ValeApp: through 09072026. NOTE: The vendor was contacted early about this disclosure but did not respond in any way.

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

ValeApp through version 09072026 contains a critical stored cross-site scripting (XSS) vulnerability that allows attackers to inject malicious scripts into web pages during generation. This vulnerability has a CVSS score of 9.3, indicating severe impact potential. Stored XSS is particularly dangerous because the malicious payload persists in the application's database, affecting every user who accesses the compromised content. Organizations using ValeApp are at immediate risk of credential theft, session hijacking, malware distribution, and data exfiltration. The lack of vendor response compounds the urgency for affected users to implement compensating controls and plan migrations away from the vulnerable software.

Casky.ai's 322 mapped security skills leverage Claude's extended reasoning to detect attack patterns associated with TA0001 (Initial Access) and TA0043 (Reconnaissance) techniques that precede and accompany XSS exploitation. Practitioners using Casky would observe skill detections for input validation failures, improper output encoding in web page generation functions, and suspicious script injection attempts in request payloads. The platform's Claude-powered analysis would correlate these findings with behavioral indicators such as unusual DOM manipulation, suspicious event handler registrations, and attempts to access sensitive client-side data. Security teams would receive contextual alerts highlighting the specific code paths vulnerable to stored XSS, enabling rapid patching or deployment of web application firewalls configured to strip malicious script tags and event handlers from user-supplied input.

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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-2026-2342.

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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Casky has 322 skills that investigate the attack patterns behind CVE-2026-2342. Run one and get CVSS-scored findings in 3 minutes.

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