Stored XSS in DivvyDrive File Sharing Platform

Improper neutralization of input during web page generation ('cross-site scripting') vulnerability in DivvyDrive Information Technologies Inc. DivvyDrive allows Stored XSS. This issue affects DivvyDrive: from 4.8.2.9 before 4.8.3.2.

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

DivvyDrive versions 4.8.2.9 through 4.8.3.1 contain a stored cross-site scripting (XSS) vulnerability that allows attackers to inject malicious scripts into web pages viewed by other users. With a CVSS score of 8.8, this is a high-severity flaw affecting organizations using DivvyDrive for file sharing and collaboration. Unlike reflected XSS, stored XSS persists in the application's database, meaning the malicious payload executes every time an affected page is accessed—making it particularly dangerous for widespread compromise. Any user with the ability to upload or modify content in DivvyDrive could exploit this to steal session tokens, credentials, or sensitive data from colleagues who access the same files or folders.

Casky's 301 matched skills leverage Claude's extended reasoning to detect the attack patterns underlying this CVE by mapping to MITRE ATT&CK techniques TA0001 (Initial Access) and TA0043 (Reconnaissance). Practitioners using Casky would identify detection opportunities across multiple layers: content injection analysis scanning for unescaped user inputs in file metadata, comments, and sharing settings; DOM manipulation detection flagging script execution in shared content contexts; and session anomaly detection catching unusual privilege escalation following XSS exploitation. The platform's skills would highlight that proper input sanitization and output encoding are critical, while practitioners would see findings indicating where user-supplied data flows into page generation without neutralization—pinpointing the exact vulnerable code patterns that need remediation before upgrading to version 4.8.3.2 or later.

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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-2026-5784.

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-2026-5784

Casky has 301 skills that investigate the attack patterns behind CVE-2026-5784. Run one and get CVSS-scored findings in 3 minutes.

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