Vulnerabilities (CVE)

Filtered by vendor Owasp Subscribe
Total 38 CVE
CVE Vendors Products Updated CVSS v2 CVSS v3
CVE-2020-15598 2 Debian, Owasp 2 Debian Linux, Modsecurity 2025-07-03 5.0 MEDIUM 7.5 HIGH
Trustwave ModSecurity 3.x through 3.0.4 allows denial of service via a special request. NOTE: The discoverer reports "Trustwave has signaled they are disputing our claims." The CVE suggests that there is a security issue with how ModSecurity handles regular expressions that can result in a Denial of Service condition. The vendor does not consider this as a security issue because1) there is no default configuration issue here. An attacker would need to know that a rule using a potentially problematic regular expression was in place, 2) the attacker would need to know the basic nature of the regular expression itself to exploit any resource issues. It's well known that regular expression usage can be taxing on system resources regardless of the use case. It is up to the administrator to decide on when it is appropriate to trade resources for potential security benefit
CVE-2019-19886 2 Fedoraproject, Owasp 2 Fedora, Modsecurity 2025-07-03 5.0 MEDIUM 7.5 HIGH
Trustwave ModSecurity 3.0.0 through 3.0.3 allows an attacker to send crafted requests that may, when sent quickly in large volumes, lead to the server becoming slow or unresponsive (Denial of Service) because of a flaw in Transaction::addRequestHeader in transaction.cc.
CVE-2022-48279 3 Debian, Owasp, Trustwave 3 Debian Linux, Modsecurity, Modsecurity 2025-07-03 N/A 7.5 HIGH
In ModSecurity before 2.9.6 and 3.x before 3.0.8, HTTP multipart requests were incorrectly parsed and could bypass the Web Application Firewall. NOTE: this is related to CVE-2022-39956 but can be considered independent changes to the ModSecurity (C language) codebase.
CVE-2023-28882 1 Owasp 1 Modsecurity 2025-07-03 N/A 7.5 HIGH
Trustwave ModSecurity 3.0.5 through 3.0.8 before 3.0.9 allows a denial of service (worker crash and unresponsiveness) because some inputs cause a segfault in the Transaction class for some configurations.
CVE-2021-42717 5 Debian, F5, Oracle and 2 more 6 Debian Linux, Nginx Modsecurity Waf, Http Server and 3 more 2025-07-03 5.0 MEDIUM 7.5 HIGH
ModSecurity 3.x through 3.0.5 mishandles excessively nested JSON objects. Crafted JSON objects with nesting tens-of-thousands deep could result in the web server being unable to service legitimate requests. Even a moderately large (e.g., 300KB) HTTP request can occupy one of the limited NGINX worker processes for minutes and consume almost all of the available CPU on the machine. Modsecurity 2 is similarly vulnerable: the affected versions include 2.8.0 through 2.9.4.
CVE-2019-25043 1 Owasp 1 Modsecurity 2025-07-03 5.0 MEDIUM 5.3 MEDIUM
ModSecurity 3.x before 3.0.4 mishandles key-value pair parsing, as demonstrated by a "string index out of range" error and worker-process crash for a "Cookie: =abc" header.
CVE-2018-13065 1 Owasp 1 Modsecurity 2025-07-03 4.3 MEDIUM 6.1 MEDIUM
ModSecurity 3.0.0 has XSS via an onerror attribute of an IMG element. NOTE: a third party has disputed this issue because it may only apply to environments without a Core Rule Set configured
CVE-2023-38285 1 Owasp 1 Modsecurity 2025-07-03 N/A 7.5 HIGH
Trustwave ModSecurity 3.x before 3.0.10 has Inefficient Algorithmic Complexity.
CVE-2024-1019 1 Owasp 1 Modsecurity 2025-07-03 N/A 8.6 HIGH
ModSecurity / libModSecurity 3.0.0 to 3.0.11 is affected by a WAF bypass for path-based payloads submitted via specially crafted request URLs. ModSecurity v3 decodes percent-encoded characters present in request URLs before it separates the URL path component from the optional query string component. This results in an impedance mismatch versus RFC compliant back-end applications. The vulnerability hides an attack payload in the path component of the URL from WAF rules inspecting it. A back-end may be vulnerable if it uses the path component of request URLs to construct queries. Integrators and users are advised to upgrade to 3.0.12. The ModSecurity v2 release line is not affected by this vulnerability.
CVE-2025-48866 1 Owasp 1 Modsecurity 2025-07-02 N/A 7.5 HIGH
ModSecurity is an open source, cross platform web application firewall (WAF) engine for Apache, IIS and Nginx. Versions prior to 2.9.10 contain a denial of service vulnerability similar to GHSA-859r-vvv8-rm8r/CVE-2025-47947. The `sanitiseArg` (and `sanitizeArg` - this is the same action but an alias) is vulnerable to adding an excessive number of arguments, thereby leading to denial of service. Version 2.9.10 fixes the issue. As a workaround, avoid using rules that contain the `sanitiseArg` (or `sanitizeArg`) action.
CVE-2024-23686 1 Owasp 1 Dependency-check 2025-06-17 N/A 5.3 MEDIUM
DependencyCheck for Maven 9.0.0 to 9.0.6, for CLI version 9.0.0 to 9.0.5, and for Ant versions 9.0.0 to 9.0.5, when used in debug mode, allows an attacker to recover the NVD API Key from a log file.
CVE-2013-5679 1 Owasp 1 Enterprise Security Api 2025-04-11 2.6 LOW N/A
The authenticated-encryption feature in the symmetric-encryption implementation in the OWASP Enterprise Security API (ESAPI) for Java 2.x before 2.1.0 does not properly resist tampering with serialized ciphertext, which makes it easier for remote attackers to bypass intended cryptographic protection mechanisms via an attack against authenticity in the default configuration, involving a null MAC and a zero MAC length.
CVE-2013-5960 1 Owasp 1 Enterprise Security Api 2025-04-11 5.8 MEDIUM N/A
The authenticated-encryption feature in the symmetric-encryption implementation in the OWASP Enterprise Security API (ESAPI) for Java 2.x before 2.1.0.1 does not properly resist tampering with serialized ciphertext, which makes it easier for remote attackers to bypass intended cryptographic protection mechanisms via an attack against the intended cipher mode in a non-default configuration, a different vulnerability than CVE-2013-5679.
CVE-2007-4385 1 Owasp 1 Stinger 2025-04-09 6.8 MEDIUM N/A
OWASP Stinger before 2.5 allows remote attackers to bypass input validation routines by using multipart encoded requests instead of form-urlencoded requests. NOTE: this might be used to expose vulnerabilities in applications that would otherwise be protected by the validation routines.
CVE-2006-3841 1 Owasp 1 Webscarab 2025-04-03 2.6 LOW N/A
Cross-site scripting (XSS) vulnerability in WebScarab before 20060718-1904, when used with Microsoft Internet Explorer 6 SP2 or Konqueror 3.5.3, allows remote attackers to inject arbitrary web script or HTML via the URL, which is not sanitized before being returned in an error message when WebScarab is not able to access the URL.
CVE-2023-38199 1 Owasp 1 Coreruleset 2024-11-21 N/A 9.8 CRITICAL
coreruleset (aka OWASP ModSecurity Core Rule Set) through 3.3.4 does not detect multiple Content-Type request headers on some platforms. This might allow attackers to bypass a WAF with a crafted payload, aka "Content-Type confusion" between the WAF and the backend application. This occurs when the web application relies on only the last Content-Type header. Other platforms may reject the additional Content-Type header or merge conflicting headers, leading to detection as a malformed header.
CVE-2022-39958 3 Debian, Fedoraproject, Owasp 3 Debian Linux, Fedora, Owasp Modsecurity Core Rule Set 2024-11-21 N/A 7.5 HIGH
The OWASP ModSecurity Core Rule Set (CRS) is affected by a response body bypass to sequentially exfiltrate small and undetectable sections of data by repeatedly submitting an HTTP Range header field with a small byte range. A restricted resource, access to which would ordinarily be detected, may be exfiltrated from the backend, despite being protected by a web application firewall that uses CRS. Short subsections of a restricted resource may bypass pattern matching techniques and allow undetected access. The legacy CRS versions 3.0.x and 3.1.x are affected, as well as the currently supported versions 3.2.1 and 3.3.2. Integrators and users are advised to upgrade to 3.2.2 and 3.3.3 respectively and to configure a CRS paranoia level of 3 or higher.
CVE-2022-39957 3 Debian, Fedoraproject, Owasp 3 Debian Linux, Fedora, Owasp Modsecurity Core Rule Set 2024-11-21 N/A 7.3 HIGH
The OWASP ModSecurity Core Rule Set (CRS) is affected by a response body bypass. A client can issue an HTTP Accept header field containing an optional "charset" parameter in order to receive the response in an encoded form. Depending on the "charset", this response can not be decoded by the web application firewall. A restricted resource, access to which would ordinarily be detected, may therefore bypass detection. The legacy CRS versions 3.0.x and 3.1.x are affected, as well as the currently supported versions 3.2.1 and 3.3.2. Integrators and users are advised to upgrade to 3.2.2 and 3.3.3 respectively.
CVE-2022-39956 3 Debian, Fedoraproject, Owasp 3 Debian Linux, Fedora, Owasp Modsecurity Core Rule Set 2024-11-21 N/A 7.3 HIGH
The 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 character encoding scheme via the Content-Type or the deprecated Content-Transfer-Encoding multipart MIME header fields that will not be decoded and inspected by the web application firewall engine and the rule set. The multipart payload will therefore bypass detection. A vulnerable backend that supports these encoding schemes can potentially be exploited. The legacy CRS versions 3.0.x and 3.1.x are affected, as well as the currently supported versions 3.2.1 and 3.3.2. Integrators and users are advised upgrade to 3.2.2 and 3.3.3 respectively. The mitigation against these vulnerabilities depends on the installation of the latest ModSecurity version (v2.9.6 / v3.0.8).
CVE-2022-39955 3 Debian, Fedoraproject, Owasp 3 Debian Linux, Fedora, Owasp Modsecurity Core Rule Set 2024-11-21 N/A 7.3 HIGH
The OWASP ModSecurity Core Rule Set (CRS) is affected by a partial rule set bypass by submitting a specially crafted HTTP Content-Type header field that indicates multiple character encoding schemes. A vulnerable back-end can potentially be exploited by declaring multiple Content-Type "charset" names and therefore bypassing the configurable CRS Content-Type header "charset" allow list. An encoded payload can bypass CRS detection this way and may then be decoded by the backend. The legacy CRS versions 3.0.x and 3.1.x are affected, as well as the currently supported versions 3.2.1 and 3.3.2. Integrators and users are advised to upgrade to 3.2.2 and 3.3.3 respectively.