PatchSiren cyber security CVE debrief
CVE-2018-25362 Fyffe CVE debrief
A SQL injection vulnerability exists in Twitter-Clone 1, specifically in the follow.php endpoint. The userid parameter fails to properly sanitize user input, allowing attackers to inject arbitrary SQL code. Successful exploitation enables union-based or time-based blind SQL injection attacks, potentially exposing sensitive database contents including user credentials and database configuration information. The vulnerability carries a HIGH severity CVSS score of 8.8, reflecting significant confidentiality impact with network-based attack vector requiring no authentication.
- Vendor
- Fyffe
- Product
- PHP-Twitter-Clone
- CVSS
- HIGH 8.8
- CISA KEV
- Not listed in stored evidence
- Original CVE published
- 2026-05-25
- Original CVE updated
- 2026-05-26
- Advisory published
- 2026-05-25
- Advisory updated
- 2026-05-26
Who should care
Organizations running Twitter-Clone 1 instances, PHP application developers, database administrators managing social platform backends, security teams monitoring for SQL injection attack patterns
Technical summary
The follow.php component in Twitter-Clone 1 contains a SQL injection vulnerability where the userid parameter accepts unsanitized input directly into database queries. Attackers can craft malicious payloads using UNION operators for direct data extraction or time-delay functions for blind inference attacks. The vulnerability permits unauthorized read access to database tables containing authentication credentials and system configuration data.
Defensive priority
HIGH
Recommended defensive actions
- Apply input validation and parameterized queries to the userid parameter in follow.php
- Implement prepared statements to prevent SQL injection in database query construction
- Review and sanitize all user-supplied input in Twitter-Clone authentication and social features
- Monitor database query logs for anomalous union-based or time-based blind SQL injection patterns
- Consider web application firewall rules to detect and block SQL injection payloads targeting follow.php
Evidence notes
Vulnerability disclosed via NVD with source references to GitHub repository, Exploit-DB entry, and VulnCheck advisory. CVSS 4.0 vector indicates network attack vector, low attack complexity, no required privileges, and high confidentiality impact. CWE-89 (SQL Injection) classified as primary weakness.
Official resources
2026-05-25