What is CVE-2018-16384?

CVE-2018-16384 is a high-severity vulnerability in Owasp Modsecurity Core Rule Set, classified under SQL Injection. CVSS score: 7.5/10. Published 2018-09-03.

How severe is CVE-2018-16384?

High severity. CVSS v3 base score is 7.5 out of 10.

Is CVE-2018-16384 known to be exploited?

4 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

SQL Injection in Owasp Modsecurity Core Rule Set

CVE-2018-16384

A SQL injection bypass (aka PL1 bypass) exists in OWASP ModSecurity Core Rule Set (owasp-modsecurity-crs) through v3.1.0-rc3 via {`a`b} where a is a special function name (such as "if") and b is the SQL statement to be executed.

Vulnerability class: SQL Injection

Published 2018-09-03 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N.

EPSS exploit prediction

EPSS: 0.017 (76.8th percentile), scored 2026-11-01.

Low probability of exploitation in the next 30 days, but still tracked. 77th percentile — 76.8% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.017 · newest: 0.017 · change: 0.000

Affected products

Owasp Modsecurity Core Rule Set — versions 3.1.0

Weakness classification (CWE)

CWE-89 — SQL Injection

Public proof-of-concept exploits

References

github.com/SpiderLabs/owasp-modsecurity-crs/issues/1167 (Exploit, Third Party Advisory)
lists.debian.org/debian-lts-announce/2023/01/msg00033.html (mailing-list)

Frequently asked questions

What is CVE-2018-16384?: CVE-2018-16384 is a high-severity vulnerability in Owasp Modsecurity Core Rule Set, classified under SQL Injection. CVSS score: 7.5/10. Published 2018-09-03.
How severe is CVE-2018-16384?: High severity. CVSS v3 base score is 7.5 out of 10.
Is CVE-2018-16384 known to be exploited?: 4 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.