CWE-20
Improper Input Validation
Description
The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly.
Hierarchy (View 1000)
Related attack patterns (CAPEC)
CAPEC-10 · CAPEC-101 · CAPEC-104 · CAPEC-108 · CAPEC-109 · CAPEC-110 · CAPEC-120 · CAPEC-13 · CAPEC-135 · CAPEC-136 · CAPEC-14 · CAPEC-153 · CAPEC-182 · CAPEC-209 · CAPEC-22 · CAPEC-23 · CAPEC-230 · CAPEC-231 · CAPEC-24 · CAPEC-250 · CAPEC-261 · CAPEC-267 · CAPEC-28 · CAPEC-3 · CAPEC-31 · CAPEC-42 · CAPEC-43 · CAPEC-45 · CAPEC-46 · CAPEC-47 · CAPEC-473 · CAPEC-52 · CAPEC-53 · CAPEC-588 · CAPEC-63 · CAPEC-64 · CAPEC-664 · CAPEC-67 · CAPEC-7 · CAPEC-71 · CAPEC-72 · CAPEC-73 · CAPEC-78 · CAPEC-79 · CAPEC-8 · CAPEC-80 · CAPEC-81 · CAPEC-83 · CAPEC-85 · CAPEC-88 · CAPEC-9
CVEs mapped to this weakness (13,387)
page 285 of 670| CVE | Vendor / Product | Sev | Risk | CVSS | EPSS | KEV | Published | Description |
|---|---|---|---|---|---|---|---|---|
| CVE-2026-33116 | Hig | 0.42 | 7.5 | 0.02 | Apr 14, 2026 | Loop with unreachable exit condition ('infinite loop') in .NET, .NET Framework, Visual Studio allows an unauthorized attacker to deny service over a network. | ||
| CVE-2026-32203 | Hig | 0.42 | 7.5 | 0.02 | Apr 14, 2026 | Stack-based buffer overflow in .NET and Visual Studio allows an unauthorized attacker to deny service over a network. | ||
| CVE-2026-5919 | Med | 0.42 | 6.5 | 0.00 | Apr 8, 2026 | Insufficient validation of untrusted input in WebSockets in Google Chrome prior to 147.0.7727.55 allowed a remote attacker who had compromised the renderer process to bypass same origin policy via a crafted HTML page. (Chromium security severity: Low) | ||
| CVE-2026-5885 | Med | 0.42 | 6.5 | 0.00 | Apr 8, 2026 | Insufficient validation of untrusted input in WebML in Google Chrome on Windows prior to 147.0.7727.55 allowed a remote attacker to obtain potentially sensitive information from process memory via a crafted HTML page. (Chromium security severity: Medium) | ||
| CVE-2026-34980 | Hig | 0.42 | 7.5 | 0.01 | Apr 3, 2026 | OpenPrinting CUPS is an open source printing system for Linux and other Unix-like operating systems. In versions 2.4.16 and prior, in a network-exposed cupsd with a shared target queue, an unauthorized client can send a Print-Job to that shared PostScript queue without… | ||
| CVE-2026-20097 | Med | 0.42 | 6.5 | 0.00 | Apr 1, 2026 | A vulnerability in the web-based management interface of Cisco IMC could allow an authenticated, remote attacker with admin-level privileges to execute arbitrary code as the root user. This vulnerability is due to improper validation of user-supplied input to the web-based… | ||
| CVE-2026-30523 | Med | 0.42 | 6.5 | 0.00 | Apr 1, 2026 | A Business Logic vulnerability exists in SourceCodester Loan Management System v1.0 due to the lack of proper input validation. The application allows administrators to define "Loan Plans" which determine the duration of a loan (in months). However, the backend fails to validate… | ||
| CVE-2026-4987 | Hig | 0.42 | 7.5 | 0.01 | Mar 28, 2026 | The SureForms – Contact Form, Payment Form & Other Custom Form Builder plugin for WordPress is vulnerable to Payment Amount Bypass in all versions up to, and including, 2.5.2. This is due to the create_payment_intent() function performing a payment validation solely based on… | ||
| CVE-2026-33894 | Hig | 0.42 | 7.5 | 0.00 | Mar 27, 2026 | Forge (also called `node-forge`) is a native implementation of Transport Layer Security in JavaScript. Prior to version 1.4.0, RSASSA PKCS#1 v1.5 signature verification accepts forged signatures for low public exponent keys (e=3). Attackers can forge signatures by stuffing… | ||
| CVE-2025-59032 | Hig | 0.42 | 7.5 | 0.01 | Mar 27, 2026 | ManageSieve AUTHENTICATE command crashes when using literal as SASL initial response. This can be used to crash ManageSieve service repeatedly, making it unavailable for other users. Control access to ManageSieve port, or disable the service if it's not needed. Alternatively… | ||
| CVE-2026-33287 | Hig | 0.42 | 7.5 | 0.00 | Mar 26, 2026 | LiquidJS is a Shopify / GitHub Pages compatible template engine in pure JavaScript. Prior to version 10.25.1, the `replace_first` filter in LiquidJS uses JavaScript's `String.prototype.replace()` which interprets `$&` as a back reference to the matched substring. The filter only… | ||
| CVE-2026-33285 | Hig | 0.42 | 7.5 | 0.00 | Mar 26, 2026 | LiquidJS is a Shopify / GitHub Pages compatible template engine in pure JavaScript. Prior to version 10.25.1, LiquidJS's `memoryLimit` security mechanism can be completely bypassed by using reverse range expressions (e.g., `(100000000..1)`), allowing an attacker to allocate… | ||
| CVE-2026-33218 | Hig | 0.42 | 7.5 | 0.01 | Mar 25, 2026 | NATS-Server is a High-Performance server for NATS.io, a cloud and edge native messaging system. Prior to versions 2.11.15 and 2.12.6, a client which can connect to the leafnode port can crash the nats-server with a certain malformed message pre-authentication. Versions 2.11.15… | ||
| CVE-2026-33332 | Hig | 0.42 | 7.5 | 0.01 | Mar 24, 2026 | NiceGUI is a Python-based UI framework. Prior to version 3.9.0, NiceGUI's app.add_media_file() and app.add_media_files() media routes accept a user-controlled query parameter that influences how files are read during streaming. The parameter is passed to the range-response… | ||
| CVE-2026-33250 | Hig | 0.42 | 7.5 | 0.01 | Mar 24, 2026 | Freeciv21 is a free open source, turn-based, empire-building strategy game. Versions prior to 3.1.1 crash with a stack overflow when receiving specially-crafted packets. A remote attacker can use this to take down any public server. A malicious server can use this to crash the… | ||
| CVE-2026-33151 | Hig | 0.42 | 7.5 | 0.01 | Mar 20, 2026 | Socket.IO is an open source, real-time, bidirectional, event-based, communication framework. Prior to versions 3.3.5, 3.4.4, and 4.2.6, a specially crafted Socket.IO packet can make the server wait for a large number of binary attachments and buffer them, which can be exploited… | ||
| CVE-2026-3644 | Hig | 0.42 | 7.5 | 0.00 | Mar 16, 2026 | The fix for CVE-2026-0672, which rejected control characters in http.cookies.Morsel, was incomplete. The Morsel.update(), |= operator, and unpickling paths were not patched, allowing control characters to bypass input validation. Additionally, BaseCookie.js_output() lacked the… | ||
| CVE-2026-32614 | — | Hig | 0.42 | 7.5 | 0.00 | Mar 16, 2026 | Go ShangMi (Commercial Cryptography) Library (GMSM) is a cryptographic library that covers the Chinese commercial cryptographic public algorithms SM2/SM3/SM4/SM9/ZUC. Prior to 0.41.1, the current SM9 decryption implementation contains an infinity-point ciphertext forgery… | |
| CVE-2026-26308 | Hig | 0.42 | 7.5 | 0.00 | Mar 10, 2026 | Envoy is a high-performance edge/middle/service proxy. Prior to 1.37.1, 1.36.5, 1.35.8, and 1.34.13, the Envoy RBAC (Role-Based Access Control) filter contains a logic vulnerability in how it validates HTTP headers when multiple values are present for the same header name.… | ||
| CVE-2025-7375 | Med | 0.42 | 6.5 | 0.00 | Mar 5, 2026 | A denial-of-service (DoS) vulnerability was identified in Omada EAP610 v3. An attacker with adjacent network access can send crafted requests to cause the device’s HTTP service to crash. This results in temporary service unavailability until the device is rebooted. This… |
- risk 0.42cvss 7.5epss 0.02
Loop with unreachable exit condition ('infinite loop') in .NET, .NET Framework, Visual Studio allows an unauthorized attacker to deny service over a network.
- risk 0.42cvss 7.5epss 0.02
Stack-based buffer overflow in .NET and Visual Studio allows an unauthorized attacker to deny service over a network.
- risk 0.42cvss 6.5epss 0.00
Insufficient validation of untrusted input in WebSockets in Google Chrome prior to 147.0.7727.55 allowed a remote attacker who had compromised the renderer process to bypass same origin policy via a crafted HTML page. (Chromium security severity: Low)
- risk 0.42cvss 6.5epss 0.00
Insufficient validation of untrusted input in WebML in Google Chrome on Windows prior to 147.0.7727.55 allowed a remote attacker to obtain potentially sensitive information from process memory via a crafted HTML page. (Chromium security severity: Medium)
- risk 0.42cvss 7.5epss 0.01
OpenPrinting CUPS is an open source printing system for Linux and other Unix-like operating systems. In versions 2.4.16 and prior, in a network-exposed cupsd with a shared target queue, an unauthorized client can send a Print-Job to that shared PostScript queue without…
- risk 0.42cvss 6.5epss 0.00
A vulnerability in the web-based management interface of Cisco IMC could allow an authenticated, remote attacker with admin-level privileges to execute arbitrary code as the root user. This vulnerability is due to improper validation of user-supplied input to the web-based…
- risk 0.42cvss 6.5epss 0.00
A Business Logic vulnerability exists in SourceCodester Loan Management System v1.0 due to the lack of proper input validation. The application allows administrators to define "Loan Plans" which determine the duration of a loan (in months). However, the backend fails to validate…
- risk 0.42cvss 7.5epss 0.01
The SureForms – Contact Form, Payment Form & Other Custom Form Builder plugin for WordPress is vulnerable to Payment Amount Bypass in all versions up to, and including, 2.5.2. This is due to the create_payment_intent() function performing a payment validation solely based on…
- risk 0.42cvss 7.5epss 0.00
Forge (also called `node-forge`) is a native implementation of Transport Layer Security in JavaScript. Prior to version 1.4.0, RSASSA PKCS#1 v1.5 signature verification accepts forged signatures for low public exponent keys (e=3). Attackers can forge signatures by stuffing…
- risk 0.42cvss 7.5epss 0.01
ManageSieve AUTHENTICATE command crashes when using literal as SASL initial response. This can be used to crash ManageSieve service repeatedly, making it unavailable for other users. Control access to ManageSieve port, or disable the service if it's not needed. Alternatively…
- risk 0.42cvss 7.5epss 0.00
LiquidJS is a Shopify / GitHub Pages compatible template engine in pure JavaScript. Prior to version 10.25.1, the `replace_first` filter in LiquidJS uses JavaScript's `String.prototype.replace()` which interprets `$&` as a back reference to the matched substring. The filter only…
- risk 0.42cvss 7.5epss 0.00
LiquidJS is a Shopify / GitHub Pages compatible template engine in pure JavaScript. Prior to version 10.25.1, LiquidJS's `memoryLimit` security mechanism can be completely bypassed by using reverse range expressions (e.g., `(100000000..1)`), allowing an attacker to allocate…
- risk 0.42cvss 7.5epss 0.01
NATS-Server is a High-Performance server for NATS.io, a cloud and edge native messaging system. Prior to versions 2.11.15 and 2.12.6, a client which can connect to the leafnode port can crash the nats-server with a certain malformed message pre-authentication. Versions 2.11.15…
- risk 0.42cvss 7.5epss 0.01
NiceGUI is a Python-based UI framework. Prior to version 3.9.0, NiceGUI's app.add_media_file() and app.add_media_files() media routes accept a user-controlled query parameter that influences how files are read during streaming. The parameter is passed to the range-response…
- risk 0.42cvss 7.5epss 0.01
Freeciv21 is a free open source, turn-based, empire-building strategy game. Versions prior to 3.1.1 crash with a stack overflow when receiving specially-crafted packets. A remote attacker can use this to take down any public server. A malicious server can use this to crash the…
- risk 0.42cvss 7.5epss 0.01
Socket.IO is an open source, real-time, bidirectional, event-based, communication framework. Prior to versions 3.3.5, 3.4.4, and 4.2.6, a specially crafted Socket.IO packet can make the server wait for a large number of binary attachments and buffer them, which can be exploited…
- risk 0.42cvss 7.5epss 0.00
The fix for CVE-2026-0672, which rejected control characters in http.cookies.Morsel, was incomplete. The Morsel.update(), |= operator, and unpickling paths were not patched, allowing control characters to bypass input validation. Additionally, BaseCookie.js_output() lacked the…
- risk 0.42cvss 7.5epss 0.00
Go ShangMi (Commercial Cryptography) Library (GMSM) is a cryptographic library that covers the Chinese commercial cryptographic public algorithms SM2/SM3/SM4/SM9/ZUC. Prior to 0.41.1, the current SM9 decryption implementation contains an infinity-point ciphertext forgery…
- risk 0.42cvss 7.5epss 0.00
Envoy is a high-performance edge/middle/service proxy. Prior to 1.37.1, 1.36.5, 1.35.8, and 1.34.13, the Envoy RBAC (Role-Based Access Control) filter contains a logic vulnerability in how it validates HTTP headers when multiple values are present for the same header name.…
- risk 0.42cvss 6.5epss 0.00
A denial-of-service (DoS) vulnerability was identified in Omada EAP610 v3. An attacker with adjacent network access can send crafted requests to cause the device’s HTTP service to crash. This results in temporary service unavailability until the device is rebooted. This…