Weakness (CWE)
CWE-807: Reliance on Untrusted Inputs in a Security Decision
The product uses a protection mechanism that relies on the existence or values of an input, but the input can be modified by an untrusted actor in a way that bypasses the protection mechanism.
More detail
Without sufficient encryption, integrity checking, or other mechanism, any input that originates from an outsider cannot be trusted.
How to prevent it (5 mitigations)
-
Architecture and Design
Store state information and sensitive data on the server side only.
Ensure that the system definitively and unambiguously keeps track of its own state and user state and has rules defined for legitimate state transitions. Do not allow any application user to affect state directly in any way other than through legitimate actions leading to state transitions.
If information must be stored on the client, do not do so without encryption and integrity checking, or otherwise having a mechanism on the server side to catch tampering. Use a message authentication code (MAC) algorithm, such as Hash Message Authentication Code (HMAC) [REF-529]. Apply this against the state or sensitive data that has to be exposed, which can guarantee the integrity of the data - i.e., that the data has not been modified. Ensure that a strong hash function is used (CWE-328).
-
Architecture and Design
Use a vetted library or framework that does not allow this weakness to occur or provides constructs that make this weakness easier to avoid.
With a stateless protocol such as HTTP, use a framework that maintains the state for you.
Examples include ASP.NET View State [REF-756] and the OWASP ESAPI Session Management feature [REF-45].
Be careful of language features that provide state support, since these might be provided as a convenience to the programmer and may not be considering security.
-
Architecture and Design
For any security checks that are performed on the client side, ensure that these checks are duplicated on the server side, in order to avoid CWE-602. Attackers can bypass the client-side checks by modifying values after the checks have been performed, or by changing the client to remove the client-side checks entirely. Then, these modified values would be submitted to the server.
-
Operation, Implementation
When using PHP, configure the application so that it does not use register_globals. During implementation, develop the application so that it does not rely on this feature, but be wary of implementing a register_globals emulation that is subject to weaknesses such as CWE-95, CWE-621, and similar issues.
-
Architecture and Design, Implementation
Understand all the potential areas where untrusted inputs can enter your software: parameters or arguments, cookies, anything read from the network, environment variables, reverse DNS lookups, query results, request headers, URL components, e-mail, files, filenames, databases, and any external systems that provide data to the application. Remember that such inputs may be obtained indirectly through API calls.
Identify all inputs that are used for security decisions and determine if you can modify the design so that you do not have to rely on submitted inputs at all. For example, you may be able to keep critical information about the user's session on the server side instead of recording it within external data.
Source: MITRE CWE-807
63 results · Clear filters · Feed
-
Medium 4.3
Multiple Vulnerabilities in IBM API Connect
IBM API Connect 12.1.0.0 through 12.1.1.2 could allow a remote authenticated attacker to falsify audit log information due to reliance on untrusted inputs. Information supplied by the client is relied on when recording the source of a request, so audit record…
-
Medium 6.5
Remark42: Rate limit bypass via unconditional trust of X-Forwarded-For/X-Real-IP headers in direct-internet deployment
Remark42 is a self-hosted comment engine for blogs, articles, or any other place where readers can add comments. From 1.0.0 until 1.16.2, Remark42 globally trusts True-Client-IP, X-Real-IP, and X-Forwarded-For without verifying that the direct peer is a trust…
-
Medium 6.5
Unvalidated parent-supplied AWS Region in AWS aws-nitro-enclaves-sdk-c allows impersonation of the enclave's AWS KMS endpoint
Incomplete string validation in AWS aws-nitro-enclaves-sdk-c before 0.4.6 may allow a third party to impersonate the AWS KMS endpoint. To remediate this issue, users should rebuild any custom enclave image against aws-nitro-enclaves-sdk-c 0.4.6.
-
Medium 4.2
Authlib: ID token can disable its own nonce validation via the nonce_supported claim
Authlib is a Python library which builds OAuth and OpenID Connect servers. Prior to 1.9.0, OpenIDMixin.parse_id_token() reads the nonce_supported decision from the untrusted ID token being validated and sets the expected nonce to null when that claim is the J…
-
Medium 6.5
Possible insecure NXDOMAIN for non-existing records under a configured island trust anchor underneath an insecure parent.
When NLnet Labs Unbound up to and including version 1.26.1 is configured with both a root trust anchor and an additional 'trust-anchor:' for an island-of-security zone whose parent is provably insecure under the root chain, a malicious actor who can deliver o…
-
Medium 6.3
AIOHTTP: Absolute-form request targets can spoof Request.scheme
AIOHTTP is an asynchronous HTTP client/server framework for asyncio and Python. Prior to 3.14.4, an attacker can send an absolute-form request that causes Request.scheme to use attacker-controlled request-target scheme data instead of the connection protocol.…
-
Medium 5.3
makeplane API Endpoint reliance on untrusted inputs in a security decision
A vulnerability was identified in makeplane plane up to 1.4.2. Impacted is an unknown function of the component API Endpoint. Such manipulation of the argument X-Forwarded-For leads to reliance on untrusted inputs in a security decision. It is possible to lau…
-
Medium 6.5
In `api-gateway` versions till `1.7.3`, The default rate-limit key resolver, `ClientIpKeyResolver`, derives the per-cli…
-
Medium 6.5
Gitea required Actions check bypass through skipped workflows
For pull request events, Gitea reads workflow definitions from the pull request head and posts a synthetic skipped status when workflow branch or path filters exclude execution. A fork pull request author can supply a workflow matching a required status conte…
-
Medium 4.3
Reliance on Untrusted Inputs in a Security Decision in GitLab
GitLab has remediated an issue in GitLab EE affecting all versions from 19.1 before 19.2.8, 19.3 before 19.3.5, and 19.4 before 19.4.2 that, under certain conditions, could have allowed an authenticated user holding a specific granular permission to obtain a …
-
Medium 5.3
pH7Builder before 19.3.0 CAPTCHA Bypass via Client-Chosen Form ID
pH7Builder (pH7 Social Dating CMS) before 19.3.0 contains a CAPTCHA bypass vulnerability that allows unauthenticated attackers to skip form validation by supplying a client-chosen form ID to PFBC Form::isValid(). Attackers can load a CAPTCHA-free form like lo…
-
Medium 4.3
Ghost 0.5.0 before 6.62.0 Arbitrary Email Registration via Staff Invite
Ghost versions before 6.62.0 contain an authentication bypass vulnerability in staff invite acceptance that allows users to specify any email address when creating their account. Attackers can accept leaked invite tokens with attacker-controlled email address…
-
Medium 5.9
Genians, Inc Genian NAC/ZTNA Remote Code Execution
A path traversal (ZIP Slip) vulnerability caused by insufficient authorization and integrity verification in the agent upgrade feature of Genian NAC/ZTNA allows a remote attacker to execute arbitrary code
-
Medium 5.3
9Router: Login Brute-Force Lockout Bypass via Spoofable X-9r-Real-Ip Header
9Router is an AI router & token saver. Prior to 0.5.6, 9Router deployments that allow requests to reach Next.js without the sanitizing custom-server.js wrapper use the client-supplied X-9r-Real-Ip value as the bucket key in getClientIp, checkLock, and recordF…
-
Medium 5.3
Admission Control Bypass via Hardcoded Sidecar Image Exemption
The NeuVector admission webhook silently excludes containers from policy evaluation when their image path matches one of three hardcoded service mesh sidecar images. Since the image path is entirely controlled by the workload author, any user capable of deplo…
-
Medium 6.5
webhookd: Unrestricted HTTP Header to Shell Variable Injection
webhookd is a minimalist webhook server that triggers shell scripts and external processes through HTTP requests. Prior to 1.22.0, webhookd deployments without htpasswd authentication forwarded all incoming HTTP headers through HTTPParamsToShellVars in pkg/ap…
-
Medium 6.9
Joomla Extension - joomshaper.com - Unauthenticated CAPTCHA Bypass in Module Context in the Contact, Opt-in and Form Builder Addons in SP Page Builder Pro 3.2.6 - 5.6.1p2 and 6.0.0 - 6.9.0
Joomla Extension - joomshaper.com - Unauthenticated CAPTCHA Bypass in Module Context in the Contact, Opt-in and Form Builder Addons in SP Page Builder Pro 3.2.6 - 5.6.1p2 and 6.0.0 - 6.9.0 - In the ajax_contact, optin_form and form_builder addons, the result …
-
Medium 6.9
Joomla Extension - joomshaper.com - Unauthenticated CAPTCHA Bypass via Request-Controlled CAPTCHA Configuration in SP Page Builder Pro 5.1.4 - 6.9.0
Joomla Extension - joomshaper.com - Unauthenticated CAPTCHA Bypass via Request-Controlled CAPTCHA Configuration in SP Page Builder Pro 5.1.4 - 6.9.0 - The optin_form addon read the CAPTCHA type, the expected answer and the enabled flag from the request rather…
-
Medium 5.3
Grav Form Plugin before 9.1.20 reCAPTCHA v3 Authentication Bypass
The Grav Form plugin (getgrav/grav-plugin-form) versions 8.0.6 through 9.1.19 select the reCAPTCHA version to validate based solely on which response field key is present in the submitted payload. On a site configured for reCAPTCHA v3, an anonymous attacker c…
-
Medium 5.3
Apache APISIX: attach-consumer-label does not strip client-supplied consumer-label headers
Reliance on Untrusted Inputs in a Security Decision vulnerability in Apache APISIX. This vulnerability allows an attacker to escalate privilege or perform an authorization bypass by sending certain values that the attach-consumer-label plugin does not sanitis…
-
Medium 6.5
rsync < 3.5.0 Arbitrary File Deletion via Malicious File List
rsync before 3.5.0 contains an improper path handling vulnerability that allows a malicious sender to expand the scope of --delete operations beyond the intended destination subtree by sending a crafted file list that causes rsync to reclassify implied parent…
-
Medium 4.3
Mira Hormone Monitor, Mira Android App Reliance on untrusted inputs in a security decision
The Mira cloud API accepts the firmware version reported by the companion app as authoritative for a given device, without independently attesting the version from the device itself. An authenticated attacker could submit arbitrary firmware version strings fo…
-
Medium 5.4
Snipe-IT Checkout Request Cancellation IDOR
Snipe-IT before 8.6.0 contains an authorization bypass (insecure direct object reference) in the asset checkout-request cancellation endpoint. The cancel_by_admin and requestingUser values are read from user-controlled URL path segments and used without a ser…
-
Medium 6.5
Improper Authorization in MongoDB Atlas Vector Search Allows Unauthorized Access to Protected View Data
An issue in MongoDB Server's Atlas Vector Search feature could allow an authenticated user with read access to one view to retrieve documents from a different, protected view over the same underlying collection. This is due to insufficient handling of certain…
-
Medium 5.9
Litestar: AllowedHostsMiddleware bypasses host validation via client-controlled X-Forwarded-Host header
Litestar is an Asynchronous Server Gateway Interface (ASGI) framework. In versions prior to 2.22.0, an attacker can bypass the allowed hosts validation by omitting the Host header and supplying an X-Forwarded-Host header set to a whitelisted domain. The Allow…
-
Medium 5.4
Keycloak-services: keycloak-services: required signed-jwt assertion policy can be bypassed with unsigned assertion headers
Keycloak provides a mechanism called Client Policies to enforce security requirements on clients, such as requiring them to use signed JWTs for authentication. A flaw was discovered where this enforcement can be bypassed. An attacker with valid client credent…
-
Medium 6.3
pam_usb: getenv() used in PAM context allows environment variable injection into local-check logic
pam_usb provides hardware authentication for Linux using removable media. In versions prior to 0.9.2, getenv() environment variables XRDP_SESSION, DISPLAY and TMUX allow environment variable injection into local-check logic. These environment variables influe…
-
Medium 4.2
OpenClaw < 2026.5.7 - Sender Policy Bypass via Mutable Conversation Identifiers in BlueBubbles
OpenClaw before 2026.5.7 contains a sender policy bypass vulnerability in BlueBubbles that allows participants to match allowlist entries through conversation metadata rather than stable sender identity. Attackers can influence conversation-level identifiers …
-
Medium 5.3
The connection confirmation pop-up of a specific feature in the PcSuite can be bypassed.
-
Medium 6.5
OpenClaw < 2026.5.6 - Approval Policy Bypass in Skill Workshop Apply Flow
OpenClaw before 2026.5.6 contains an approval policy bypass vulnerability in the Skill Workshop apply flow that allows agent tool calls to set apply: true despite approvalPolicy: pending configuration. Attackers can exploit this by reaching the affected apply…
-
Medium 6.3
Client-supplied URI scheme trusted without transport verification in bandit
Reliance on Untrusted Inputs in a Security Decision vulnerability in mtrudel bandit allows unauthenticated transport-state spoofing on plaintext HTTP connections. 'Elixir.Bandit.Pipeline':determine_scheme/2 in lib/bandit/pipeline.ex returns the client-supplie…
-
Medium 5.3
OpenClaw < 2026.3.31 - Environment Variable Bypass in Package Index URL Handling
OpenClaw before 2026.3.31 fails to properly sanitize PIP_INDEX_URL and UV_INDEX_URL environment variables in host execution contexts, allowing attackers to redirect Python package-index traffic. Attackers can exploit this bypass to intercept or manipulate pac…
-
Medium 4.9
A vulnerability in the browser-based remote management interface may allow an administrator to access sensitive informa…
-
Medium 6.7
UEFI Secure Boot Security Feature Bypass Vulnerability
Reliance on untrusted inputs in a security decision in Windows Boot Loader allows an authorized attacker to bypass a security feature locally.
-
Medium 6.2
SpotFTP Password Recover 2.4.2 Denial of Service via Name Field
SpotFTP Password Recover 2.4.2 contains a denial of service vulnerability that allows local attackers to crash the application by supplying an oversized buffer in the Name field during registration. Attackers can generate a 256-byte payload, paste it into the…
-
Medium 5.9
OpenClaw < 2026.3.22 - Webhook Reply Rebinding via Username Resolution in Synology Chat
OpenClaw before 2026.3.22 contains a webhook reply delivery vulnerability that allows attackers to rebind chat replies to unintended users by exploiting mutable username matching instead of stable numeric user identifiers. Attackers can manipulate username ch…
-
Medium 5.7
OpenClaw < 2026.3.22 - Identity Spoofing via rawInput Tool in ACP Permission Resolution
OpenClaw before 2026.3.22 contains an identity spoofing vulnerability in ACP permission resolution that trusts conflicting tool identity hints from rawInput and metadata. Attackers can spoof tool identities through rawInput parameters to suppress dangerous-to…
-
Medium 4.2
OpenClaw < 2026.3.22 - Policy Confusion via Room Name Collision in Nextcloud Talk
OpenClaw before 2026.3.22 contains a policy confusion vulnerability in room authorization that matches colliding room names instead of stable room tokens. Attackers can exploit similarly named rooms to bypass allowlist policies and gain unauthorized access to…
-
Medium 4.2
OpenClaw < 2026.3.25 - Authorization Bypass via Group Policy Rebinding with Mutable Space displayName
OpenClaw before 2026.3.25 contains an authorization bypass vulnerability in Google Chat group policy enforcement that relies on mutable space display names. Attackers can rebind group policies by changing or colliding space display names to gain unauthorized …
-
Medium 5.3
GINA Domain Switch
SEPPmail Secure Email Gateway before version 15.0.3 allows an external user to modify GINA webdomain metadata and bypass per-domain restrictions.