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
Published · last modified .
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.
EPSS exploit prediction
EPSS: 0.004 (33.6th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 34th percentile — 33.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.004 · newest: 0.004 · change: 0.000
Affected products
- Next Click Ventures Realtyscripts — versions 4.0.2
- Nextclickventures Realtyscript — versions 4.0.2
Weakness classification (CWE)
References
- www.exploit-db.com/exploits/38497 (Exploit, VDB Entry, Third Party Advisory, exploit)
- www.zeroscience.mk/en/vulnerabilities/ZSL-2015-5270.php (Exploit, vendor-advisory, Third Party Advisory)
- www.vulncheck.com/advisories/realtyscript-sql-injection-via-u-id-and-agent-para… (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.