Stored XSS in DernekWeb Allows Persistent Code Injection

Improper neutralization of input during web page generation ('cross-site scripting') vulnerability in Basamak Information Technology Consulting and Organization Trade Ltd. Co. DernekWeb allows Stored XSS. This issue affects DernekWeb: through 30122025.

Casky was already ahead

This CVE exploits attack patterns that Casky's 301matched 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

DernekWeb contains a stored cross-site scripting (XSS) vulnerability that fails to properly neutralize user input during web page generation. This allows attackers to inject malicious scripts that persist in the application's database and execute whenever affected pages are viewed by other users. Organizations using DernekWeb through version 30122025 are at risk, as attackers can compromise user sessions, steal sensitive data, deface content, or redirect users to malicious sites. The CVSS 8.8 rating reflects the high severity—this vulnerability enables account hijacking and lateral movement within trusted environments.

Casky's 301 mapped skills leverage Claude's extended reasoning to detect the attack patterns underlying this vulnerability across MITRE ATT&CK's Initial Access (TA0001) and Resource Development (TA0043) techniques. Practitioners using Casky will identify suspicious input patterns that bypass sanitization filters, recognize script injection payloads in HTTP requests and stored data, and correlate user-submitted content with unexpected JavaScript execution in page responses. The platform's skills help security teams trace attack chains—from initial payload delivery through persistence mechanisms—enabling them to spot evidence of exploitation in logs, network traffic, and application behavior before widespread compromise occurs.

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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 →

301 Casky skills cover this attack pattern

These skills use Claude AI's reasoning model to surface findings in the same attack categories as CVE-2026-7498.

analyzing-apt-group-with-mitre-navigator

threat intelligence · low

Run

analyzing-campaign-attribution-evidence

threat intelligence · low

Run

analyzing-certificate-transparency-for-phishing

threat intelligence · low

Run

MITRE ATT&CK Techniques

TA0001 TA0043

Investigate the attack patterns behind CVE-2026-7498

Casky has 301 skills that investigate the attack patterns behind CVE-2026-7498. Run one and get CVSS-scored findings in 3 minutes.

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