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OpenAdvisories

Weakness (CWE)

CWE-918: Server-Side Request Forgery

Base Incomplete

The web server receives a URL or similar request from an upstream component and retrieves the contents of this URL, but it does not sufficiently ensure that the request is being sent to the expected destination.

How to prevent it (3 mitigations)
  1. Implementation, Operation

    If there is a known list of applications, IP, hostname, and/or domains to which the product is allowed to communicate, then use allowlists to ensure that outgoing requests are restricted to these known entities. The allowlists could be in the application code or possibly enforced by firewalls or network segmentation [REF-1511].

  2. Implementation, Operation

    If the product is expected to be able to connect to arbitrary IP addresses or domains, consider using a denylist that includes private network addresses, internal domain names, etc. The denylist could be in the application code or possibly enforced by firewalls or network segmentation [REF-1511].

  3. Implementation

    Assume all input is malicious. Use an "accept known good" input validation strategy, i.e., use a list of acceptable inputs that strictly conform to specifications. Reject any input that does not strictly conform to specifications, or transform it into something that does.

    When performing input validation, consider all potentially relevant properties, including length, type of input, the full range of acceptable values, missing or extra inputs, syntax, consistency across related fields, and conformance to business rules. As an example of business rule logic, "boat" may be syntactically valid because it only contains alphanumeric characters, but it is not valid if the input is only expected to contain colors such as "red" or "blue."

    Do not rely exclusively on looking for malicious or malformed inputs. This is likely to miss at least one undesirable input, especially if the code's environment changes. This can give attackers enough room to bypass the intended validation. However, denylists can be useful for detecting potential attacks or determining which inputs are so malformed that they should be rejected outright.

    When constructing outgoing requests from input strings, use stringent allowlists that limit the character set based on the expected value of the parameter in the request. This will indirectly limit the scope of an attack, but this technique is less important than proper output encoding and escaping.

Source: MITRE CWE-918

3,822 results · Feed

  • High 8.5

    Arbitrary File Read and SSRF in Google AppSheet

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  • Medium 4.4

    WordPress TS Poll plugin <= 2.5.5 - Server Side Request Forgery (SSRF) vulnerability

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  • Medium 5.5

    WordPress URL Shortify plugin <= 1.12.3 - Server Side Request Forgery (SSRF) vulnerability

    Server-Side Request Forgery (SSRF) vulnerability in KaizenCoders URL Shortify url-shortify allows Server Side Request Forgery.This issue affects URL Shortify: from n/a through <= 1.12.3.

  • Medium 4.9

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  • High 7.2

    WordPress Smart Auto Upload Images plugin <= 1.2.2 - Server Side Request Forgery (SSRF) vulnerability

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  • Medium 5.6

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  • Medium 6.4

    Printful Integration for WooCommerce <= 2.2.11 - Authenticated (Contributor+) Server-Side Request Forgery

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  • Critical 9.1
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  • Medium 6.3

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  • Medium 4.3

    Gutenberg Blocks with AI by Kadence WP <= 3.6.1 - Authenticated (Contributor+) Server-Side Request Forgery via 'endpoint' Parameter

    The Gutenberg Blocks with AI by Kadence WP plugin for WordPress is vulnerable to Server-Side Request Forgery in all versions up to, and including, 3.6.1. This is due to insufficient validation of the `endpoint` parameter in the `get_items()` function of the G…

  • High 7.1

    StorageGRID (formerly StorageGRID Webscale) versions prior to 11.9.0.12 and 12.0.0.4 with Single Sign-on enabled and co…

  • Medium 5.4

    Multiple Vulnerabilities in IBM Concert Software.

    IBM Concert 1.0.0 through 2.1.0 is vulnerable to server-side request forgery (SSRF). This may allow an authenticated attacker to send unauthorized requests from the system, potentially leading to network enumeration or facilitating other attacks.

  • High 7.6

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  • Medium 6.3

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  • Medium 6.3

    cskefu Endpoint MediaController.java server-side request forgery

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  • Medium 6.3

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  • Medium 6.3

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  • Medium 5.0

    MP3 Audio Player – Music Player, Podcast Player & Radio by Sonaar 5.3 - 5.10 - Authenticated (Author+) Server-Side Request Forgery

    The MP3 Audio Player – Music Player, Podcast Player & Radio by Sonaar plugin for WordPress is vulnerable to Server-Side Request Forgery in versions 5.3 to 5.10 via the 'load_lyrics_ajax_callback' function. This makes it possible for authenticated attackers, w…

  • Medium 5.5
    CVE-2026-0745 Public exploit

    User Language Switch <= 1.6.10 - Authenticated (Administrator+) Server-Side Request Forgery via 'info_language' Parameter

    The User Language Switch plugin for WordPress is vulnerable to Server-Side Request Forgery in all versions up to, and including, 1.6.10 due to missing URL validation on the 'download_language()' function. This makes it possible for authenticated attackers, wi…

  • High 7.7
    CVE-2026-25991 Public exploit

    Tandoor Recipes affected by Blind SSRF with Internal Network Access via Recipe Import

    Tandoor Recipes is an application for managing recipes, planning meals, and building shopping lists. Prior to 2.5.1, there is a Blind Server-Side Request Forgery (SSRF) vulnerability in the Cookmate recipe import feature of Tandoor Recipes. The application fa…

  • Medium 5.0

    ClipBucket v5 enables internal network scans via an SSRF vulnerability

    ClipBucket v5 is an open source video sharing platform. Prior to 5.5.3 - #45, in Clip Bucket V5, The Remote Play allows creating video entries that reference external video URLs without uploading the video files to the server. However, by specifying an intern…

  • Medium 4.8

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  • Medium 4.1

    @langchain/community affected by SSRF Bypass in RecursiveUrlLoader via insufficient URL origin validation

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  • Medium 4.3

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  • Medium 5.4

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  • Medium 5.8

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  • Low 3.7

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  • Medium 6.5

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  • Critical 9.8

    SSRF in Teknolist Computer's Okulistik

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  • Medium 5.8

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    Faraday is an HTTP client library abstraction layer that provides a common interface over many adapters. Prior to 2.14.1, Faraday's build_exclusive_url method (in lib/faraday/connection.rb) uses Ruby's URI#merge to combine the connection's base URL with a use…

  • Medium 5.8

    LangSmith Client SDK Affected by Server-Side Request Forgery via Tracing Header Injection

    LangSmith Client SDKs provide SDK's for interacting with the LangSmith platform. The LangSmith SDK's distributed tracing feature is vulnerable to Server-Side Request Forgery via malicious HTTP headers. An attacker can inject arbitrary api_url values through t…

  • Medium 6.9

    Craft has a SSRF in GraphQL Asset Mutation via Alternative IP Notation

    Craft is a platform for creating digital experiences. In Craft versions 4.0.0-RC1 through 4.16.17 and 5.0.0-RC1 through 5.8.21, the saveAsset GraphQL mutation uses filter_var(..., FILTER_VALIDATE_IP) to block a specific list of IP addresses. However, alternat…

  • Medium 6.9

    Craft has a SSRF in GraphQL Asset Mutation via HTTP Redirect

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  • Medium 5.3

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  • Medium 5.4

    Fluent Forms Pro Add On Pack <= 6.1.12 - Authenticated (Subscriber+) Server-Side Request Forgery via 'saveDataSource'

    The Fluent Forms Pro Add On Pack plugin for WordPress is vulnerable to Server-Side Request Forgery in all versions up to, and including, 6.1.12 via the 'saveDataSource' function. This makes it possible for authenticated attackers, with Subscriber-level access…

  • Medium 5.8

    Overly permissive Deno configuration in mcp-run-python leads to SSRF

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  • Medium 5.3

    Homarr affected by Unauthenticated SSRF / Port-Scan Primitive via widget.app.ping

    Homarr is an open-source dashboard. Prior to 1.52.0, a public (unauthenticated) tRPC endpoint widget.app.ping accepts an arbitrary url and performs a server-side request to that URL. This allows an unauthenticated attacker to trigger outbound HTTP requests fr…

  • High 8.6

    Pydantic AI Affected by Server-Side Request Forgery (SSRF) in URL Download Handling

    Pydantic AI is a Python agent framework for building applications and workflows with Generative AI. From 0.0.26 to before 1.56.0, aServer-Side Request Forgery (SSRF) vulnerability exists in Pydantic AI's URL download functionality. When applications accept me…

  • Low 3.7

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    Webpack is a module bundler. From version 5.49.0 to before 5.104.0, when experiments.buildHttp is enabled, webpack’s HTTP(S) resolver (HttpUriPlugin) enforces allowedUris only for the initial URL, but does not re-validate allowedUris after following HTTP 30x …