What is CVE-2015-20121?

CVE-2015-20121 is a high-severity vulnerability in Next Click Ventures Realtyscripts, classified under SQL Injection. CVSS score: 8.2/10. Published 2026-03-16.

How severe is CVE-2015-20121?

High severity. CVSS v3 base score is 8.2 out of 10.

SQL Injection in Next Click Ventures Realtyscripts

CVE-2015-20121

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.

Vulnerability class: SQL Injection

EPSS: 0.004 (34.3th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 8.2 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:N.

Affected products

Next Click Ventures Realtyscripts — versions 4.0.2
Nextclickventures Realtyscript — versions 4.0.2

Weakness classification (CWE)

CWE-89 — SQL Injection

References

disclosure@vulncheck.com (Exploit, VDB Entry, Third Party Advisory, exploit)
disclosure@vulncheck.com (Exploit, vendor-advisory, Third Party Advisory)
disclosure@vulncheck.com (Third Party Advisory, third-party-advisory)

Frequently asked questions

What is CVE-2015-20121?: CVE-2015-20121 is a high-severity vulnerability in Next Click Ventures Realtyscripts, classified under SQL Injection. CVSS score: 8.2/10. Published 2026-03-16.
How severe is CVE-2015-20121?: High severity. CVSS v3 base score is 8.2 out of 10.