CWE-138
Improper Neutralization of Special Elements
Description
The product receives input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could be interpreted as control elements or syntactic markers when they are sent to a downstream component.
Hierarchy (View 1000)
Related attack patterns (CAPEC)
CAPEC-105 · CAPEC-15 · CAPEC-34
CVEs mapped to this weakness (13)
| CVE | Vendor / Product | Sev | Risk | CVSS | EPSS | KEV | Published | Description |
|---|---|---|---|---|---|---|---|---|
| CVE-2023-42117 | Cri | 0.64 | 9.8 | 0.06 | May 3, 2024 | Exim Improper Neutralization of Special Elements Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of Exim. Authentication is not required to exploit this vulnerability. The specific flaw exists… | ||
| CVE-2023-7012 | Cri | 0.62 | 9.6 | 0.00 | Jul 16, 2024 | Insufficient data validation in Permission Prompts in Google Chrome prior to 117.0.5938.62 allowed an attacker who convinced a user to install a malicious app to potentially perform a sandbox escape via a malicious file. (Chromium security severity: Medium) | ||
| CVE-2024-38133 | Hig | 0.51 | 7.8 | 0.01 | Aug 13, 2024 | Windows Kernel Elevation of Privilege Vulnerability | ||
| CVE-2026-26129 | Hig | 0.49 | 7.5 | 0.01 | May 7, 2026 | Improper neutralization of special elements used in a command ('command injection') in M365 Copilot allows an unauthorized attacker to disclose information over a network. | ||
| CVE-2022-0024 | Hig | 0.47 | 7.2 | 0.02 | May 11, 2022 | A vulnerability exists in Palo Alto Networks PAN-OS software that enables an authenticated network-based PAN-OS administrator to upload a specifically created configuration that disrupts system processes and potentially execute arbitrary code with root privileges when the… | ||
| CVE-2026-32178 | Hig | 0.42 | 7.5 | 0.02 | Apr 14, 2026 | Improper neutralization of special elements in .NET allows an unauthorized attacker to perform spoofing over a network. | ||
| CVE-2022-2429 | Med | 0.42 | 6.5 | 0.01 | Sep 6, 2022 | The Ultimate SMS Notifications for WooCommerce plugin for WordPress is vulnerable to CSV Injection in versions up to, and including, 1.4.1 via the 'Export Utility' functionality. This makes it possible for authenticated attackers, such as a subscriber, to add untrusted input… | ||
| CVE-2025-5878 | Hig | 0.40 | 7.3 | 0.00 | Jun 29, 2025 | A vulnerability was found in ESAPI esapi-java-legacy and classified as problematic. This issue affects the interface Encoder.encodeForSQL of the SQL Injection Defense. An attack leads to an improper neutralization of special elements. The attack may be initiated remotely and an… | ||
| CVE-2026-20009 | Med | 0.34 | 5.3 | 0.00 | Mar 4, 2026 | A vulnerability in the implementation of the proprietary SSH stack with SSH key-based authentication in Cisco Secure Firewall Adaptive Security Appliance (ASA) Software could allow an unauthenticated, remote attacker to log in to a Cisco Secure Firewall ASA device and execute… | ||
| CVE-2024-51500 | Med | 0.34 | 5.3 | 0.00 | Nov 4, 2024 | Meshtastic firmware is a device firmware for the Meshtastic project. The Meshtastic firmware does not check for packets claiming to be from the special broadcast address (0xFFFFFFFF) which could result in unexpected behavior and potential for DDoS attacks on the network. A… | ||
| CVE-2023-22288 | Med | 0.27 | 4.1 | 0.00 | Mar 20, 2023 | HTML Email Injection in Tribe29 Checkmk <=2.1.0p23; <=2.0.0p34, and all versions of Checkmk 1.6.0 allows an authenticated attacker to inject malicious HTML into Emails | ||
| CVE-2025-48939 | Med | 0.20 | 4.2 | 0.00 | Jul 3, 2025 | tarteaucitron.js is a compliant and accessible cookie banner. Prior to version 1.22.0, a vulnerability was identified in tarteaucitron.js where document.currentScript was accessed without verifying that it referenced an actual element. If an attacker injected an HTML… | ||
| CVE-2016-0750 | Med | 0.20 | 4.2 | 0.02 | Sep 11, 2018 | The hotrod java client in infinispan before 9.1.0.Final automatically deserializes bytearray message contents in certain events. A malicious user could exploit this flaw by injecting a specially-crafted serialized object to attain remote code execution or conduct other attacks. |
- risk 0.64cvss 9.8epss 0.06
Exim Improper Neutralization of Special Elements Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of Exim. Authentication is not required to exploit this vulnerability. The specific flaw exists…
- risk 0.62cvss 9.6epss 0.00
Insufficient data validation in Permission Prompts in Google Chrome prior to 117.0.5938.62 allowed an attacker who convinced a user to install a malicious app to potentially perform a sandbox escape via a malicious file. (Chromium security severity: Medium)
- risk 0.51cvss 7.8epss 0.01
Windows Kernel Elevation of Privilege Vulnerability
- risk 0.49cvss 7.5epss 0.01
Improper neutralization of special elements used in a command ('command injection') in M365 Copilot allows an unauthorized attacker to disclose information over a network.
- risk 0.47cvss 7.2epss 0.02
A vulnerability exists in Palo Alto Networks PAN-OS software that enables an authenticated network-based PAN-OS administrator to upload a specifically created configuration that disrupts system processes and potentially execute arbitrary code with root privileges when the…
- risk 0.42cvss 7.5epss 0.02
Improper neutralization of special elements in .NET allows an unauthorized attacker to perform spoofing over a network.
- risk 0.42cvss 6.5epss 0.01
The Ultimate SMS Notifications for WooCommerce plugin for WordPress is vulnerable to CSV Injection in versions up to, and including, 1.4.1 via the 'Export Utility' functionality. This makes it possible for authenticated attackers, such as a subscriber, to add untrusted input…
- risk 0.40cvss 7.3epss 0.00
A vulnerability was found in ESAPI esapi-java-legacy and classified as problematic. This issue affects the interface Encoder.encodeForSQL of the SQL Injection Defense. An attack leads to an improper neutralization of special elements. The attack may be initiated remotely and an…
- risk 0.34cvss 5.3epss 0.00
A vulnerability in the implementation of the proprietary SSH stack with SSH key-based authentication in Cisco Secure Firewall Adaptive Security Appliance (ASA) Software could allow an unauthenticated, remote attacker to log in to a Cisco Secure Firewall ASA device and execute…
- risk 0.34cvss 5.3epss 0.00
Meshtastic firmware is a device firmware for the Meshtastic project. The Meshtastic firmware does not check for packets claiming to be from the special broadcast address (0xFFFFFFFF) which could result in unexpected behavior and potential for DDoS attacks on the network. A…
- risk 0.27cvss 4.1epss 0.00
HTML Email Injection in Tribe29 Checkmk <=2.1.0p23; <=2.0.0p34, and all versions of Checkmk 1.6.0 allows an authenticated attacker to inject malicious HTML into Emails
- risk 0.20cvss 4.2epss 0.00
tarteaucitron.js is a compliant and accessible cookie banner. Prior to version 1.22.0, a vulnerability was identified in tarteaucitron.js where document.currentScript was accessed without verifying that it referenced an actual element. If an attacker injected an HTML…
- risk 0.20cvss 4.2epss 0.02
The hotrod java client in infinispan before 9.1.0.Final automatically deserializes bytearray message contents in certain events. A malicious user could exploit this flaw by injecting a specially-crafted serialized object to attain remote code execution or conduct other attacks.