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Vulnerability record · CVE-2018-16384 · published 3 September 2018

CVE-2018-16384: Owasp modsecurity core rule set sql injection vulnerability

Owasp · Owasp Modsecurity Core Rule Set

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.

7.5 CVSS 3.1 High EPSS 1.7% · top 24.1% CWE-89 · SQL injection
7.5CVSS 3.1 base score, v2 5.0
1.7%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
4References, 2 tagged exploit
17 Jun 2026Last modified by NVD

Description

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.

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://github.com/SpiderLabs/owasp-modsecurity-crs/issues/1167 ExploitThird Party Advisory
https://lists.debian.org/debian-lts-announce/2023/01/msg00033.html
https://github.com/SpiderLabs/owasp-modsecurity-crs/issues/1167 ExploitThird Party Advisory
https://lists.debian.org/debian-lts-announce/2023/01/msg00033.html

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

9.8CVE-2022-39955Owasp modsecurity core rule set incorrect authorization vulnerabilityThe OWASP ModSecurity Core Rule Set (CRS) is affected by a partial rule set bypass by submitting a specially crafted HTTP Content-Type header field t…EPSS 1.4%9.8CVE-2022-39956Owasp modsecurity core rule set incorrect authorization vulnerabilityThe OWASP ModSecurity Core Rule Set (CRS) is affected by a partial rule set bypass for HTTP multipart requests by submitting a payload that uses a ch…EPSS 1.2%9.8CVE-2020-22669Owasp modsecurity core rule set sql injection vulnerabilityModsecurity owasp-modsecurity-crs 3.2.0 (Paranoia level at PL1) has a SQL injection bypass vulnerability. Attackers can use the comment characters an…EPSS 1.3%9.8CVE-2021-35368Owasp modsecurity core rule set vulnerabilityOWASP ModSecurity Core Rule Set 3.1.x before 3.1.2, 3.2.x before 3.2.1, and 3.3.x before 3.3.2 is affected by a Request Body Bypass via a trailing pa…EPSS 2.7%7.5CVE-2026-33691Owasp modsecurity core rule set vulnerabilityThe OWASP core rule set (CRS) is a set of generic attack detection rules for use with compatible web application firewalls. Prior to versions 3.3.9 a…EPSS 1.6%7.5CVE-2022-39957Owasp modsecurity core rule set vulnerabilityThe OWASP ModSecurity Core Rule Set (CRS) is affected by a response body bypass. A client can issue an HTTP Accept header field containing an optiona…EPSS 0.99%7.5CVE-2022-39958Owasp modsecurity core rule set incorrect authorization vulnerabilityThe OWASP ModSecurity Core Rule Set (CRS) is affected by a response body bypass to sequentially exfiltrate small and undetectable sections of data by…EPSS 1.2%5.3CVE-2026-21876Owasp modsecurity core rule set vulnerabilityThe OWASP core rule set (CRS) is a set of generic attack detection rules for use with compatible web application firewalls. Prior to versions 4.22.0 …EPSS 18%

Source: NIST National Vulnerability Database (record CVE-2018-16384), CISA KEV, FIRST EPSS (scores of 2026-09-28). This page is refreshed as NVD updates the record.