Weakness (CWE)
CWE-184: Incomplete List of Disallowed Inputs
The product implements a protection mechanism that relies on a list of inputs (or properties of inputs) that are not allowed by policy or otherwise require other action to neutralize before additional processing takes place, but the list is incomplete.
How to prevent it (1 mitigation)
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Implementation
Do not rely exclusively on detecting disallowed inputs. There are too many variants to encode a character, especially when different environments are used, so there is a high likelihood of missing some variants. Only use detection of disallowed inputs as a mechanism for detecting suspicious activity. Ensure that you are using other protection mechanisms that only identify "good" input - such as lists of allowed inputs - and ensure that you are properly encoding your outputs.
Source: MITRE CWE-184
22 results · Clear filters · Feed
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Low 2.3
Symfony: HtmlSanitizer Does Not URL-Sanitize srcset and imagesrcset: Media Scheme and Host Allow-List Bypass
The Symfony HtmlSanitizer component does not apply the media URL policy to the srcset and imagesrcset attributes, allowing values that point to hosts or schemes not permitted by allowMediaSchemes() or allowMediaHosts() to bypass it, so that browsers load imag…
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Low 2.3
Symfony: HtmlSanitizer allowLinkHosts() / allowMediaHosts() Bypass via URLs Without a Well-Formed Authority (Incomplete Fix for CVE-2026-45066)
The Symfony HtmlSanitizer component UrlSanitizer parses URLs differently from browsers, allowing the allowLinkHosts() and allowMediaHosts() checks to be bypassed for URLs without a well-formed authority, resulting in untrusted hosts being referenced in saniti…
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Low 3.1
vsftpd through 3.0.5 cmds_denied Bypass via RFC 775 Command Aliases
vsftpd through 3.0.5 contains an access control bypass vulnerability that allows authenticated FTP users to execute denied commands by issuing RFC 775 X-prefixed aliases. The cmds_denied check in process_post_login() compares literal tokens, so attackers can …
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Low 3.7
mcp-from-openapi 2.2.0 before 2.9.0 SSRF blockedHosts Bypass via Trailing-Dot Hostname
Agentfront mcp-from-openapi from 2.2.0 before 2.9.0 contains a server-side request forgery vulnerability that allows attackers to bypass the ssrf.blockedHosts denylist using trailing-dot hostnames. Attackers who control an OpenAPI spec URL or redirect target …
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Low 3.5
An input reflection vulnerability affects HCL Traveler
The Apple profile generated for the Apple built-in Mail, Calendar and Contacts account to synchronize with HCL Traveler requires the Logon Name and Mail Address to be embedded in them. The values cannot be changed later on, so the Apple profile generation pa…
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Low 2.0
Kimai before 2.53.0 API Token Leakage via Invoice Template
Kimai before 2.53.0 fails to block sensitive User methods in the Twig invoice template sandbox, allowing admins to call getApiToken() and getPlainApiToken() methods. Attackers with template creation permissions can embed these method calls in invoice template…
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Low 3.7
Limit Login Attempts Reloaded < 3.3.5 - Username Denylist Bypass via Case Variant and Account Email
The Limit Login Attempts Reloaded WordPress plugin before 3.3.5 does not compare logins against its username denylist case-insensitively and does not account for the account's email address, allowing an account an administrator intended to block from logging …
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Low 2.3
Loofah `allowed_uri?` does not detect `javascript:` URIs split by numeric character references without semicolons
Loofah is a general library for manipulating and transforming HTML/XML documents and fragments, built on top of Nokogiri. From 2.25.0 until 2.25.2, Loofah::HTML5::Scrub.allowed_uri? does not reject javascript: or vbscript: URIs whose scheme is split by semico…
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Low 2.3
Loofah `allowed_uri?` does not detect `javascript:` URIs split by named whitespace character references
Loofah is a general library for manipulating and transforming HTML/XML documents and fragments, built on top of Nokogiri. From 2.25.0 until 2.25.2, Loofah::HTML5::Scrub.allowed_uri? does not reject javascript: URIs whose scheme is split or prefixed with the H…
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Low 2.1
Symfony: HtmlSanitizer UrlAttributeSanitizer Omits action/formaction/poster/cite — javascript: URI Survives Sanitization (XSS)
Symfony is a PHP framework for web and console applications and a set of reusable PHP components. From 6.1.0-BETA1 until 6.4.40, 7.4.12, and 8.0.12, UrlAttributeSanitizer::getSupportedAttributes() omits URL-valued attributes including action, formaction, post…
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Low 2.3
Symfony: HtmlSanitizer allowLinkHosts() / allowMediaHosts() Bypass via URL-Parser Differentials and <area> Misclassification
Symfony is a PHP framework for web and console applications and a set of reusable PHP components. From 6.1.0-BETA1 until 6.4.40, 7.4.12, and 8.0.12, HtmlSanitizer URL sanitization can allow off-allowlist URLs through allowLinkHosts() or allowMediaHosts() beca…
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Low 2.6
Nokogiri: XML::Schema on JRuby allows network requests when NONET is set, bypassing CVE-2020-26247
Nokogiri is an open source XML and HTML library for the Ruby programming language. Prior to 1.19.4, the NONET parse option, which Nokogiri turns on by default for Nokogiri::XML::Schema (see CVE-2020-26247), was not correctly enforced on the JRuby implementati…
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Low 3.5
Beszel has an IDOR in hub API endpoints that read system ID from URL parameter
Beszel is a server monitoring platform. Prior to 0.18.7, some API endpoints in the Beszel hub accept a user-supplied system ID and proceed without further checks that the user should have access to that system. As a result, any authenticated user can access t…
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Low —
Fickling has a detection bypass via stdlib network-protocol constructors
# Our assessment `imtplib`, `imaplib`, `ftplib`, `poplib`, `telnetlib`, and `nntplib` were added to the list of unsafe imports (https://github.com/trailofbits/fickling/commit/6d20564d23acf14b42ec883908aed159be7b9ade). The `UnusedVariables` heuristic works as …
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Low 3.8
PrestaShop Checkout Target PayPal merchant account hijacking from backoffice
PrestaShop Checkout is the PrestaShop official payment module in partnership with PayPal. In versions prior to 4.4.1 and 5.0.5, the Target PayPal merchant account hijacking from backoffice due to wrong usage of the PHP array_search(). The vulnerability is fix…
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Low 3.8
Unsafe handling of AJAX calls
A vulnerability in the OTRS Admin Interface and Agent Interface (versions before OTRS 8) allow parameter injection due to for an autheniticated agent or admin user. This issue affects: * OTRS 7.0.X * OTRS 8.0.X * OTRS 2023.X * OTRS 2024.X * OTRS 2025.X * ((OT…
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Low 2.3
Wasmtime doesn't fully sandbox all the Windows device filenames
Wasmtime is a fast and secure runtime for WebAssembly. Wasmtime's filesystem sandbox implementation on Windows blocks access to special device filenames such as "COM1", "COM2", "LPT0", "LPT1", and so on, however it did not block access to the special device f…
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Low 3.1CVE-2024-32152 EPSS 12%
Ankitects Anki LaTeX Blocklist Bypass vulnerability
A blocklist bypass vulnerability exists in the LaTeX functionality of Ankitects Anki 24.04. A specially crafted malicious flashcard can lead to an arbitrary file creation at a fixed path. An attacker can share a malicious flashcard to trigger this vulnerabili…
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Low 2.7
The Remote Mount feature can potentially be abused by valid, authenticated users to make connections to internal servic…
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Low 2.7
Holes in EndpointSlice Validation Enable Host Network Hijack
A security issue was discovered in Kubernetes where a user may be able to redirect pod traffic to private networks on a Node. Kubernetes already prevents creation of Endpoint IPs in the localhost or link-local range, but the same validation was not performed …
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Low 3.9
Privilege escalation in NetHack
NetHack before version 3.6.0 allowed malicious use of escaping of characters in the configuration file (usually .nethackrc) which could be exploited. This bug is patched in NetHack 3.6.0.
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Low 3.1
Incomplete List of Disallowed Inputs in Jenkins
jenkins before versions 2.44, 2.32.2 is vulnerable to an improper blacklisting of the Pipeline metadata files in the agent-to-master security subsystem. This could allow metadata files to be written to by malicious agents (SECURITY-358).