How severe is CVE-2015-20121?

CVE-2015-20121 has a CVSS 3.x base score of 8.2, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity low, and availability none.

Is CVE-2015-20121 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (34th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2015-20121?

CVE-2015-20121 affects Nextclickventures Realtyscript. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2015-20121?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

Does CVE-2015-20121 have an EU (EUVD) identifier?

Yes. CVE-2015-20121 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2015-9423.

When was CVE-2015-20121 published?

CVE-2015-20121 was published on 2026-03-16 and last updated on 2026-06-17.

CVE-2015-20121

CVE-2015-20121 is a high-severity vulnerability in Nextclickventures Realtyscript with a CVSS 3.x base score of 8.2. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-89.

Key facts

Severity: High (CVSS 3.x base score 8.2)
CVSS v4: 8.8
EPSS exploit prediction: 0% (34th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2015-9423
Weakness: CWE-89
Affected product: Nextclickventures Realtyscript
Published: 2026-03-16
Last modified: 2026-06-17

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.

Frequently asked questions

What is 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.
How severe is CVE-2015-20121?: CVE-2015-20121 has a CVSS 3.x base score of 8.2, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity low, and availability none.
Is CVE-2015-20121 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (34th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2015-20121?: CVE-2015-20121 affects Nextclickventures Realtyscript. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2015-20121?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
Does CVE-2015-20121 have an EU (EUVD) identifier?: Yes. CVE-2015-20121 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2015-9423.
When was CVE-2015-20121 published?: CVE-2015-20121 was published on 2026-03-16 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:nextclickventures:realtyscript:4.0.2:*:*:*:*:*:*:*

More vulnerabilities in Nextclickventures Realtyscript

CVE-2015-20120 — High (CVSS 8.2): Next Click Ventures RealtyScript 4.0.2 contains multiple time-based blind SQL injection vulnerabilities that allow…
CVE-2015-20118 — High (CVSS 7.2): Next Click Ventures RealtyScript 4.0.2 contains a stored cross-site scripting vulnerability in the location_name…
CVE-2015-20115 — High (CVSS 7.2): Next Click Ventures RealtyScript 4.0.2 fails to properly sanitize file uploads, allowing attackers to store malicious…
CVE-2015-20119 — Medium (CVSS 6.4): Next Click Ventures RealtyScript 4.0.2 contains a stored cross-site scripting vulnerability that allows authenticated…
CVE-2015-20116 — Medium (CVSS 6.1): Next Click Ventures RealtyScript 4.0.2 fails to properly sanitize CSV file uploads, allowing attackers to inject…
CVE-2015-20114 — Medium (CVSS 6.1): Next Click Ventures RealtyScript 4.0.2 contains a cross-site scripting vulnerability that allows attackers to execute…

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