What’s Vulnerable › Vulnerabilities

CVE-2015-20121: RealtyScript 4.0.2 SQL Injection via u_id and agent Parameters

• Severity: critical (CVSS 9.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.4% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2026-03-16 · updated 2026-06-17
• Weakness: CWE-89

Description

Next Click Ventures RealtyScript 4.0.2 contains SQL injection vulnerabilities that allow unauthenticated attackers to manipulate database queries by injecting arbitrary SQL code through the GET parameter 'u_id' in /admin/users.php and the POST parameter 'agent[]' in /admin/mailer.php. Attackers can exploit time-based blind SQL injection techniques to extract sensitive database information or cause denial of service through sleep-based payloads.

Affected products

• Next Click Ventures RealtyScript: 4.0.2

References

• http://www.zeroscience.mk/en/vulnerabilities/ZSL-2015-5270.php
• https://www.exploit-db.com/exploits/38497
• https://www.vulncheck.com/advisories/realtyscript-sql-injection-via-u-id-and-agent-parameters

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