What is CVE-2018-11652?

CVE-2018-11652 is a critical-severity vulnerability in Cirt.net Nikto, classified under Improper Neutralization of Formula Elements in a CSV File. CVSS score: 9.8/10. Published 2018-06-01.

How severe is CVE-2018-11652?

Critical severity. CVSS v3 base score is 9.8 out of 10.

Vulnerability in Cirt.net Nikto

CVE-2018-11652

CSV Injection vulnerability in Nikto 2.1.6 and earlier allows remote attackers to inject arbitrary OS commands via the Server field in an HTTP response header, which is directly injected into a CSV report.

Published 2018-06-01 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.244 (97.8th percentile), scored 2026-10-01.

Moderate probability of exploitation in the next 30 days — watch for active exploitation reports. 98th percentile — 97.8% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.244 · newest: 0.244 · change: 0.000

Affected products

Cirt.net Nikto

Weakness classification (CWE)

CWE-1236 — Improper Neutralization of Formula Elements in a CSV File

References

github.com/sullo/nikto/commit/e759b3300aace5314fe3d30800c8bd83c81c29f7 (Patch, Third Party Advisory)
www.exploit-db.com/exploits/44899/ (Exploit, VDB Entry, Third Party Advisory, exploit)

Frequently asked questions

What is CVE-2018-11652?: CVE-2018-11652 is a critical-severity vulnerability in Cirt.net Nikto, classified under Improper Neutralization of Formula Elements in a CSV File. CVSS score: 9.8/10. Published 2018-06-01.
How severe is CVE-2018-11652?: Critical severity. CVSS v3 base score is 9.8 out of 10.