Unauthenticated Arbitrary File Upload in Delta SQL

Delta Sql 1.8.2 contains an arbitrary file upload vulnerability that allows unauthenticated attackers to upload malicious files by sending POST requests to docs_upload.php with crafted multipart form data. Attackers can upload PHP files with arbitrary content to the upload directory and execute them on the server for remote code execution.

Casky was already ahead

This CVE exploits attack patterns that Casky's 261matched 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

Delta SQL 1.8.2 suffers from a critical unauthenticated file upload vulnerability in the docs_upload.php endpoint that allows attackers to bypass authentication controls entirely. By crafting malicious multipart form data in POST requests, threat actors can upload arbitrary files—particularly PHP webshells—directly to the server's upload directory. Once uploaded, these files execute with server privileges, providing remote code execution (RCE) capabilities. This vulnerability is especially dangerous because it requires no authentication, no interaction, and minimal technical sophistication to exploit. Organizations running Delta SQL 1.8.2 face immediate risk of full system compromise, data exfiltration, and lateral movement within their infrastructure.

Casky's 261 mapped security skills help practitioners detect the attack chain behind this vulnerability by identifying patterns across MITRE ATT&CK Technique TA0004 (Privilege Escalation) and TA0006 (Credential Access). Claude's extended reasoning capabilities correlate suspicious indicators: POST requests to docs_upload.php with unusual multipart boundaries, PHP file extensions in upload parameters, and subsequent execution attempts. Practitioners using Casky would observe findings highlighting unauthenticated file upload attempts, unexpected executable files in web-accessible directories, and PHP execution patterns following upload activities. The platform's skill mapping enables security teams to quickly contextualize exploit signals within the broader attack lifecycle, distinguishing between legitimate uploads and exploitation attempts targeting this specific vulnerability.

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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 →

261 Casky skills cover this attack pattern

These skills use Claude AI's reasoning model to surface findings in the same attack categories as CVE-2018-25412.

analyzing-cloud-storage-access-patterns

cloud security · low

Run

analyzing-kubernetes-audit-logs

container security · low

Run

analyzing-malicious-url-with-urlscan

phishing defense · medium

Run

MITRE ATT&CK Techniques

TA0004 TA0006

Investigate the attack patterns behind CVE-2018-25412

Casky has 261 skills that investigate the attack patterns behind CVE-2018-25412. Run one and get CVSS-scored findings in 3 minutes.

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