CWE-20: Improper Input Validation
The product receives input or data, but it does not validate or incorrectly validates that the input has the properties required to process the data safely.
Yearly Trend
Top Affected Vendors
All Improper Input Validation CVEs (1,486)
This vulnerability in Schneider Electric PowerLogic EGX devices allows attackers to send specially crafted HTTP packets that bypass input validation, ...
Jun 11, 2021Multiple vulnerabilities in Cisco SD-WAN vManage Software allow unauthenticated remote attackers to execute arbitrary code or access sensitive informa...
May 6, 2021CVE-2021-1505 is a critical vulnerability in Cisco SD-WAN vManage software that allows unauthenticated remote attackers to execute arbitrary code or a...
May 6, 2021Multiple vulnerabilities in Cisco SD-WAN vManage Software allow unauthenticated remote attackers to execute arbitrary code or access sensitive informa...
May 6, 2021This vulnerability allows unauthenticated attackers with network access to VMware View Planner Harness to upload and execute arbitrary files, leading ...
Mar 3, 2021CVE-2020-28870 is a critical remote code execution vulnerability in InoERP 0.7.2 that allows unauthenticated attackers to execute arbitrary code on th...
Feb 10, 2021CVE-2020-36199 is a command injection vulnerability in TinyCheck security monitoring software that allows attackers to execute arbitrary commands on a...
Jan 26, 2021This vulnerability allows remote attackers to execute arbitrary code on affected HMI devices by exploiting improper input validation in the Ethernet D...
Jan 26, 2021This vulnerability allows unauthenticated remote attackers to execute arbitrary commands on Cisco Smart Software Manager Satellite systems through web...
Jan 20, 2021Multiple vulnerabilities in Cisco Smart Software Manager Satellite web UI allow unauthenticated remote attackers to execute arbitrary commands on the ...
Jan 20, 2021This critical vulnerability in Cisco Smart Software Manager Satellite allows unauthenticated remote attackers to execute arbitrary commands on the und...
Jan 20, 2021CVE-2021-3028 is a command injection vulnerability in git-big-picture versions before 1.0.0 that allows remote code execution when processing branch n...
Jan 13, 2021CVE-2020-0471 is a critical Bluetooth vulnerability in Android that allows a nearby attacker to inject packets into encrypted Bluetooth connections wi...
Jan 11, 2021CVE-2016-9021 is an improper input validation vulnerability in Exponent CMS's storeController.php that allows attackers to execute arbitrary code. Thi...
Dec 31, 2020CVE-2016-9023 is an improper input validation vulnerability in Exponent CMS's cron/find_help.php script that allows remote attackers to execute arbitr...
Dec 31, 2020CVE-2016-9026 is an improper input validation vulnerability in Exponent CMS's fileController.php that allows attackers to execute arbitrary code on af...
Dec 31, 2020CVE-2020-13942 is a critical remote code execution vulnerability in Apache Unomi that allows attackers to inject malicious OGNL or MVEL scripts throug...
Nov 24, 2020This CVE describes a buffer over-read vulnerability in Bluetooth peripheral firmware across multiple Qualcomm Snapdragon platforms. Attackers can expl...
Nov 2, 2020CVE-2018-19949 is a critical command injection vulnerability in QNAP QTS operating system that allows remote attackers to execute arbitrary commands o...
Oct 28, 2020CVE-2019-17006 is a buffer overflow vulnerability in Network Security Services (NSS) cryptographic library due to missing length checks. This allows a...
Oct 22, 2020This vulnerability allows unauthenticated remote code execution on Lenovo Cloud Networking Operating System (CNOS) devices when the optional REST API ...
Oct 14, 2020CVE-2020-11805 is an incorrect UDP access control vulnerability in Pexip Reverse Proxy and TURN Server that allows unauthorized users to relay traffic...
Sep 25, 2020CVE-2020-25787 is a critical vulnerability in Tiny Tiny RSS (tt-rss) that allows remote code execution due to improper URL validation. Attackers can e...
Sep 19, 2020CVE-2020-0333 is an improper input validation vulnerability in Android's UrlQuerySanitizer component that allows remote code execution without user in...
Sep 17, 2020This vulnerability in xmlquery library versions before 1.3.1 allows attackers to cause denial of service (SIGSEGV crash) by feeding non-XML content to...
Sep 16, 2020CVE-2020-24074 is a critical buffer overflow vulnerability in the silk-v3-decoder program's decode function, which fails to properly validate input da...
Sep 9, 2020This vulnerability in IBM Spectrum Protect Operations Center allows remote attackers to execute arbitrary code on affected systems due to improper inp...
Sep 2, 2020CVE-2020-1025 is an authentication bypass vulnerability in Microsoft SharePoint Server and Skype for Business Server where improper OAuth token valida...
Jul 14, 2020CVE-2025-12543 is a critical vulnerability in Undertow HTTP server core where improper Host header validation allows attackers to poison caches, perfo...
Jan 7, 2026This vulnerability allows stored cross-site scripting (XSS) in 5ire's chatbot responses due to insufficient input sanitization. The XSS can escalate t...
May 14, 2025SolarWinds Access Rights Manager (ARM) has a critical remote code execution vulnerability that allows unauthenticated attackers to execute arbitrary c...
Jul 17, 2024This vulnerability in Google Chrome allows an attacker who convinces a user to install a malicious application to potentially escape Chrome's sandbox ...
Jul 16, 2024This vulnerability allows authenticated attackers with read-only administrator credentials to escalate privileges to read-write administrator access o...
Jun 28, 2023This vulnerability allows authenticated remote attackers with read-only credentials to elevate privileges to administrator level on Cisco Expressway a...
Jun 28, 2023This critical vulnerability in Genian NAC allows remote attackers to execute arbitrary code with SYSTEM privileges on all connected nodes through serv...
Mar 25, 2022This vulnerability in Keycloak allows attackers to execute cross-site scripting (XSS) attacks that can lead to complete account takeover. The flaw exi...
May 28, 2021CVE-2020-24374 is a DNS rebinding vulnerability in Freebox v5 routers that allows attackers to bypass same-origin policy restrictions and perform unau...
Sep 16, 2020CVE-2020-24377 is a DNS rebinding vulnerability in Freebox Server web interfaces that allows attackers to bypass same-origin policy restrictions and i...
Sep 16, 2020CVE-2022-24711 is an improper input validation vulnerability in CodeIgniter4 that allows attackers to execute CLI (Command Line Interface) routes via ...
Feb 28, 2022This cross-site scripting vulnerability in Movary allows attackers to inject malicious scripts via the 'categoryUpdated' parameter. Users running Mova...
Jan 19, 2026This cross-site scripting (XSS) vulnerability in Movary allows attackers to inject malicious scripts via the 'categoryDeleted' parameter. Users of Mov...
Jan 19, 2026CVE-2026-23841 is a cross-site scripting (XSS) vulnerability in Movary web application versions prior to 0.70.0. Attackers can inject malicious script...
Jan 19, 2026CVE-2025-58361 is a cross-site scripting (XSS) vulnerability in Promptcraft Forge Studio where insufficient URL validation allows attackers to inject ...
Sep 4, 2025CVE-2025-29814 is an improper authorization vulnerability in Microsoft Partner Center that allows authenticated attackers to elevate privileges over a...
Mar 21, 2025This vulnerability in Misskey allows attackers to create fake user profiles and forged notes that appear to originate from different instances or user...
Dec 18, 2024JFrog Artifactory versions below specified security releases are vulnerable to cache poisoning due to improper input validation. This vulnerability al...
Aug 5, 2024CVE-2023-28578 is a memory corruption vulnerability in Qualcomm Core Services that occurs when removing a single event listener. This allows attackers...
Mar 4, 2024CVE-2024-22199 is a cross-site scripting (XSS) vulnerability in the gofiber/template package that allows attackers to execute malicious scripts in use...
Jan 11, 2024Tutanota (Tuta Mail) email client versions before 3.118.12 fail to properly validate URL schemes when opening links from emails. This allows attackers...
Dec 15, 2023This vulnerability in the tj-actions/branch-names GitHub Action allows attackers to execute arbitrary code by using specially crafted branch names. Th...
Dec 5, 2023About Improper Input Validation (CWE-20)
The product receives input or data, but it does not validate or incorrectly validates that the input has the properties required to process the data safely.
Our database tracks 1,486 CVEs classified as CWE-20, with 256 rated critical and 904 rated high severity. The average CVSS score for Improper Input Validation vulnerabilities is 7.7.
External reference: View CWE-20 on MITRE CWE →
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