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Improper Input Validation

1,071
CRITICAL
4,031
HIGH
3,494
MEDIUM
283
LOW
9,068 CVEs · Page 22/182
5.4
CVE-2026-18504

fastify is a fast and low overhead web framework for Node.js. Versions of fastify before 5.12.1 are affected by a schema

5.4
CVE-2026-47880

A producer who can publish to a JMS destination consumed by any Spring Integration JMS inbound component can set String

5.3
CVE-2026-23886

Swift W3C TraceContext is a Swift implementation of the W3C Trace Context standard, and Swift OTel is an OpenTelemetry P

5.3
CVE-2026-24347

Improper input validation in Admin UI of EZCast Pro II version 1.17478.146 allows attackers to manipulate files in the /

5.3
CVE-2025-69251

free5gc UDM provides Unified Data Management (UDM) for free5GC, an open-source project for 5th generation (5G) mobile co

5.3
CVE-2026-28421

Vim is an open source, command line text editor. Versions prior to 9.2.0077 have a heap-buffer-overflow and a segmentati

5.3
CVE-2026-21282

Adobe Commerce versions 2.4.9-alpha3, 2.4.8-p3, 2.4.7-p8, 2.4.6-p13, 2.4.5-p15, 2.4.4-p16 and earlier are affected by an

5.3
CVE-2026-21310

Adobe Commerce versions 2.4.9-alpha3, 2.4.8-p3, 2.4.7-p8, 2.4.6-p13, 2.4.5-p15, 2.4.4-p16 and earlier are affected by an

5.3
CVE-2026-31805

Discourse is an open-source discussion platform. Prior to versions 2026.3.0-latest.1, 2026.2.1, and 2026.1.2, an authori

5.3
CVE-2026-3460

The REST API TO MiniProgram plugin for WordPress is vulnerable to Insecure Direct Object Reference in all versions up to

5.3
CVE-2026-3641

The Appmax plugin for WordPress is vulnerable to Improper Input Validation in all versions up to, and including, 1.0.3.

5.3
CVE-2026-4538

A vulnerability was identified in PyTorch 2.10.0. The affected element is an unknown function of the component pt2 Loadi

5.3
CVE-2026-33769

Astro is a web framework. From version 2.10.10 to before version 5.18.1, this issue concerns Astro's remotePatterns path

5.3
CVE-2026-20686

This issue was addressed with improved input validation. This issue is fixed in iOS 26.3 and iPadOS 26.3. An app may be

5.3
CVE-2025-59028

When sending invalid base64 SASL data, login process is disconnected from the auth server, causing all active authentica

5.3
CVE-2026-33936

The `ecdsa` PyPI package is a pure Python implementation of ECC (Elliptic Curve Cryptography) with support for ECDSA (El

5.3
CVE-2026-29909

MRCMS V3.1.2 contains an unauthenticated directory enumeration vulnerability in the file management module. The /admin/f

5.3
CVE-2026-34525

AIOHTTP is an asynchronous HTTP client/server framework for asyncio and Python. Prior to version 3.13.4, multiple Host h

5.3
CVE-2026-29137

SEPPmail Secure Email Gateway before version 15.0.3 allows an attacker to hide security tags from users by crafting a lo

5.3
CVE-2026-29141

SEPPmail Secure Email Gateway before version 15.0.3 allows an attacker to bypass subject sanitization and forge tags suc

5.3
CVE-2026-29144

SEPPmail Secure Email Gateway before version 15.0.3 allows an attacker to bypass subject sanitization and forge security

5.3
CVE-2026-32990

Improper Input Validation vulnerability in Apache Tomcat due to an incomplete fix of CVE-2025-66614. This issue affects

5.3
CVE-2026-33948

jq is a command-line JSON processor. Commits before 6374ae0bcdfe33a18eb0ae6db28493b1f34a0a5b contain a vulnerability whe

5.3
CVE-2026-1782

The MetForm Pro plugin for WordPress is vulnerable to Improper Input Validation in all versions up to, and including, 3

5.3
CVE-2026-6675

The Responsive Blocks – Page Builder for Blocks & Patterns plugin for WordPress is vulnerable to Unauthenticated Open Em

5.3
CVE-2026-6777

Other issue in the Networking: DNS component. This vulnerability was fixed in Firefox 150 and Thunderbird 150.

5.3
CVE-2026-6779

Other issue in the JavaScript Engine component. This vulnerability was fixed in Firefox 150 and Thunderbird 150.

5.3
CVE-2026-22748

Vulnerability in Spring Spring Security. When an application configures JWT decoding with NimbusJwtDecoder  or NimbusRea

5.3
CVE-2026-34066

nimiq-blockchain provides persistent block storage for Nimiq's Rust implementation. Prior to version 1.3.0, `HistoryStor

5.3
CVE-2026-8391

Other issue in the JavaScript Engine component. This vulnerability was fixed in Firefox 150.0.3, Firefox ESR 115.36, Fir

5.3
CVE-2026-44294

protobufjs compiles protobuf definitions into JavaScript (JS) functions. Prior to 7.5.6 and 8.0.2, protobufjs generated

5.3
CVE-2026-44379

MISP is an open source threat intelligence and sharing platform. Prior to 2.5.37, MISP Collections did not enforce RFC 4

5.3
CVE-2026-8516

Insufficient validation of untrusted input in DataTransfer in Google Chrome prior to 148.0.7778.168 allowed a remote att

5.3
CVE-2026-8538

Insufficient validation of untrusted input in GPU in Google Chrome prior to 148.0.7778.168 allowed a remote attacker who

5.3
CVE-2026-9124

Insufficient validation of untrusted input in Input in Google Chrome on prior to 148.0.7778.179 allowed a remote attacke

5.3
CVE-2026-9985

Insufficient validation of untrusted input in Media in Google Chrome on ChromeOS prior to 148.0.7778.216 allowed a remot

5.3
CVE-2026-44518

liboqs is a C-language cryptographic library that provides implementations of post-quantum cryptography algorithms. Prio

5.3
CVE-2026-45352

cpp-httplib is a C++11 single-file header-only cross platform HTTP/HTTPS library. Prior to 0.43.4, negative chunk-size i

5.3
CVE-2026-10566

A weakness has been identified in FoundationAgents MetaGPT up to 0.8.2. This affects the function Message.check_instruct

5.3
CVE-2026-11098

Insufficient validation of untrusted input in GPU in Google Chrome prior to 149.0.7827.53 allowed a remote attacker who

5.3
CVE-2026-11246

Insufficient validation of untrusted input in IndexedDB in Google Chrome prior to 149.0.7827.53 allowed a remote attacke

5.3
CVE-2026-48108

Russh is a Rust SSH client & server library. From version 0.34.0-beta.1 to before version 0.61.0, russh did not enforce

5.3
CVE-2024-21944

Improper input validation for DIMM serial presence detect (SPD) metadata could allow an attacker with physical access, r

5.3
CVE-2026-48998

guzzlehttp/psr7 is a PSR-7 HTTP message library implementation in PHP. Versions prior to 2.10.2 contain improper Host he

5.3
CVE-2026-49214

guzzlehttp/psr7 is a PSR-7 HTTP message library implementation in PHP. Versions prior to 2.10.2 did not reject ASCII con

5.3
CVE-2026-12025

Insufficient validation of untrusted input in Network in Google Chrome prior to 149.0.7827.115 allowed a remote attacker

5.3
CVE-2026-56762

Hono before 4.12.12 does not validate cookie names on the write path in the setCookie(), serialize(), and serializeSigne

5.3
CVE-2026-42389

This fix provides extra hardening for the 5.4.x branch by doing extra validation of incoming answers from authoritative

5.3
CVE-2026-42390

An invalid zone might pass ZONEMD validation while it should not. This is only relevant if ZoneToCache is configured wit

5.3
CVE-2026-13875

Insufficient validation of untrusted input in GPU in Google Chrome on Windows prior to 150.0.7871.47 allowed a remote at

Frequently Asked Questions

What is CWE-20?

CWE-20 (Improper Input Validation) is a weakness category in the Common Weakness Enumeration (CWE) system maintained by MITRE. It describes a class of software or hardware vulnerability that can lead to security issues.

How many CVEs are classified as CWE-20?

There are 14,187 CVE records associated with CWE-20 in our database. Of these, 1071 are critical severity, 4031 are high severity, and 3494 are medium severity.

How can I protect against CWE-20 vulnerabilities?

Protection strategies depend on the specific weakness type. General measures include input validation, secure coding practices, regular security testing, and keeping software up to date. CyberStrike can help by automatically scanning your infrastructure for vulnerabilities related to CWE-20 using AI-powered security agents.

Detect CWE-20 Vulnerabilities

CyberStrike's AI agents automatically detect improper input validation vulnerabilities across your infrastructure.

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