Weakness (CWE)
CWE-918: Server-Side Request Forgery
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)
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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].
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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].
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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
1,406 results · Clear filters · Feed
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High 7.4
Clerk JavaScript: SSRF in the opt-in clerkFrontendApiProxy feature may leak secret keys to unintended host
Clerk JavaScript is the official JavaScript repository for Clerk authentication. In @clerk/hono from versions 0.1.0 to before 0.1.5, @clerk/express from versions 2.0.0 to before 2.0.7, @clerk/backend from versions 3.0.0 to before 3.2.3, and @clerk/fastify fro…
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High 7.6
InvoiceShelf: SSRF in Invoice PDF Rendering via Unsanitised HTML in Notes Field
InvoiceShelf is an open-source web & mobile app that helps track expenses, payments and create professional invoices and estimates. Prior to version 2.2.0, a Server-Side Request Forgery (SSRF) vulnerability exists in the Invoice PDF generation module. User-su…
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High 7.6
InvoiceShelf: SSRF in Payment Receipt PDF Rendering via Unsanitised HTML in Notes Field
InvoiceShelf is an open-source web & mobile app that helps track expenses, payments and create professional invoices and estimates. Prior to version 2.2.0, a Server-Side Request Forgery (SSRF) vulnerability exists in the Payment receipt PDF generation module.…
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High 7.6
InvoiceShelf: SSRF in Estimate PDF Rendering via Unsanitised HTML in Notes Field
InvoiceShelf is an open-source web & mobile app that helps track expenses, payments and create professional invoices and estimates. Prior to version 2.2.0, a Server-Side Request Forgery (SSRF) vulnerability exists in the Estimate PDF generation module. User-s…
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High 8.3
OpenClaw < 2026.3.28 - Server-Side Request Forgery via Unguarded Image Download in fal Provider
OpenClaw before 2026.3.28 contains a server-side request forgery vulnerability in the fal provider image-generation-provider.ts component that allows attackers to fetch internal URLs. A malicious or compromised fal relay can exploit unguarded image download f…
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High 7.7
Server-Side Request Forgery via MCP Tools Endpoint in FastGPT
FastGPT is an AI Agent building platform. Prior to version 4.14.9.5, FastGPT's MCP (Model Context Protocol) tools endpoints (/api/core/app/mcpTools/getTools and /api/core/app/mcpTools/runTool) accept a user-supplied URL parameter and make server-side HTTP req…
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High 7.8
Gotenberg: Chromium deny-list bypass via case-insensitive URL scheme
Gotenberg is an API for converting document formats. Prior to version 8.29.0, the fix introduced for CVE-2024-21527 can be bypassed using mixed-case or uppercase URL schemes. This issue has been patched in version 8.29.0.
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High 7.7
Invoice Ninja v5.12.46 and v5.12.48 is vulnerable to Server-Side Request Forgery (SSRF) in CheckDatabaseRequest.php.
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High 7.6CVE-2026-29954 Public exploit
In KubePlus 4.1.4, the mutating webhook and kubeconfiggenerator components have an SSRF vulnerability when processing t…
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High 7.5CVE-2026-0560 Scanner template
Server-Side Request Forgery (SSRF) in parisneo/lollms
A Server-Side Request Forgery (SSRF) vulnerability exists in parisneo/lollms versions prior to 2.2.0, specifically in the `/api/files/export-content` endpoint. The `_download_image_to_temp()` function in `backend/routers/files.py` fails to validate user-contr…
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High 7.3
elecV2 elecV2P URL mock eAxios server-side request forgery
A vulnerability was identified in elecV2 elecV2P up to 3.8.3. This affects the function eAxios of the file /mock of the component URL Handler. Such manipulation of the argument req leads to server-side request forgery. It is possible to launch the attack remo…
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High 7.2
Oxygen <= 6.0.8 - Unauthenticated Server-Side Request Forgery via route_path
The Oxygen Theme theme for WordPress is vulnerable to Server-Side Request Forgery in all versions up to, and including, 6.0.8 via the laborator_calc_route AJAX action. This makes it possible for unauthenticated attackers to make web requests to arbitrary loca…
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High 8.5
LinkAce's SSRF protection can be bypassed via internal hostname resolution in LinkAce
LinkAce is a self-hosted archive to collect website links. Versions prior to 2.5.3 block direct requests to private IP literals, but still performs server-side requests to internal-only resources when those resources are referenced through an internal hostnam…
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High 7.7
LibreChat Server-Side Request Forgery using DNS resolution
LibreChat is a ChatGPT clone with additional features. Versions 0.8.2-rc2 through 0.8.2 are vulnerable to a server-side request forgery (SSRF) attack when using agent actions or MCP. Although a previous SSRF vulnerability (https://github.com/danny-avila/Libre…
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High 8.5
LibreChat has SSRF protection bypass via IPv4-mapped IPv6 normalization in isPrivateIP
LibreChat is a ChatGPT clone with additional features. Prior to version 0.8.3, `isPrivateIP()` in `packages/api/src/auth/domain.ts` fails to detect IPv4-mapped IPv6 addresses in their hex-normalized form, allowing any authenticated user to bypass SSRF protect…
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High —
Postiz has Multiple SSRF Vectors - Webhooks, RSS Feed, URL Loader
## Summary Postiz has multiple SSRF vulnerabilities where user-provided URLs are fetched server-side without any IP validation or SSRF protection. ## Vulnerable Code ### 1. Webhook Send Endpoint (Most Critical) **`apps/backend/src/api/routes/webhooks.controll…
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High 7.5
Postiz App has a High-Severity SSRF Vulnerability via Next.js
### Impact A successful SSRF attack allows an attacker to: - Bypass firewalls to scan and interact with internal network services/ports. - Access sensitive cloud metadata services (e.g., AWS IMDS 169.254.169.254) to potentially leak instance credentials. - Pi…
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High 7.3
mingSoft MCMS Editor Endpoint BaseAction.java catchImage server-side request forgery
A weakness has been identified in mingSoft MCMS up to 5.5.0. This issue affects the function catchImage of the file net/mingsoft/cms/action/BaseAction.java of the component Editor Endpoint. Executing a manipulation of the argument catchimage can lead to serve…
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High 8.6
Server-Side Request Forgery in BedrockProxyChatModel via Unvalidated Media URL Fetching
Spring AI's spring-ai-bedrock-converse contains a Server-Side Request Forgery (SSRF) vulnerability in BedrockProxyChatModel when processing multimodal messages that include user-supplied media URLs. Insufficient validation of those URLs allows an attacker to …
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High 7.5
Server-Side Request Forgery (SSRF) vulnerability exists in the AnnounContent of the /admin/read.php in OTCMS V7.66 and …
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High 8.6
Firecrawl Playwright Service SSRF Protection Bypass via Missing Post-Redirect Validation
Firecrawl version 2.8.0 and prior contain a server-side request forgery (SSRF) protection bypass vulnerability in the Playwright scraping service where network policy validation is applied only to the initial user-supplied URL and not to subsequent redirect d…
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High 7.1
Wallos: Incomplete fix for CVE-2026-30840 - SSRF in AI and notification endpoints bypass ssrf_helper.php
Wallos is an open-source, self-hostable personal subscription tracker. Prior to version 4.7.0, the patch introduced in commit e8a513591 (CVE-2026-30840) added SSRF protection to notification test endpoints but left three additional attack surfaces unprotected…
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High 7.7
Wallos: SSRF Bypass - Incomplete Fix for CVE-2026-30839/30840
Wallos is an open-source, self-hostable personal subscription tracker. Prior to version 4.7.0, the SSRF fix applied in version 4.6.2 for CVE-2026-30839 and CVE-2026-30840 is incomplete. The validate_webhook_url_for_ssrf() protection was added to the test* not…
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High 8.3
Wallos: SSRF via HTTP Proxy Environment Variable
Wallos is an open-source, self-hostable personal subscription tracker. Prior to version 4.7.0, Wallos endpoints/logos/search.php accepts HTTP_PROXY and HTTPS_PROXY environment variables without validation, enabling SSRF via proxy hijacking. The server perform…
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High 7.3
DefaultFuction Jeson-Customer-Relationship-Management-System API Module System.php server-side request forgery
A security vulnerability has been detected in DefaultFuction Jeson-Customer-Relationship-Management-System up to 1b4679c4d06b90d31dd521c2b000bfdec5a36e00. This affects an unknown function of the file /api/System.php of the component API Module. The manipulati…
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High 8.6
AVideo has a SSRF Protection Bypass via IPv4-Mapped IPv6 Addresses in Unauthenticated LiveLinks Proxy
WWBN AVideo is an open source video platform. In versions up to and including 26.0, the `isSSRFSafeURL()` function in AVideo can be bypassed using IPv4-mapped IPv6 addresses (`::ffff:x.x.x.x`). The unauthenticated `plugin/LiveLinks/proxy.php` endpoint uses th…
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High 7.3
trueleaf ApiFlow URL Validation http_proxy.service.ts validateUrlSecurity server-side request forgery
A vulnerability was determined in trueleaf ApiFlow 0.9.7. The impacted element is the function validateUrlSecurity of the file packages/server/src/service/proxy/http_proxy.service.ts of the component URL Validation Handler. This manipulation causes server-sid…
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High 7.2
Content Syndication Toolkit <= 1.3 - Unauthenticated Server-Side Request Forgery via 'url' Parameter
The Content Syndication Toolkit plugin for WordPress is vulnerable to Server-Side Request Forgery in all versions up to, and including, 1.3 via the redux_p AJAX action in the bundled ReduxFramework library. The plugin registers a proxy endpoint (wp_ajax_nopri…
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High 7.2
Performance Monitor <= 1.0.6 - Unauthenticated Server-Side Request Forgery via 'url' Parameter
The Performance Monitor plugin for WordPress is vulnerable to Server-Side Request Forgery in all versions up to, and including, 1.0.6. This is due to insufficient validation of the 'url' parameter in the '/wp-json/performance-monitor/v1/curl_data' REST API en…
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High 8.3
MimeTypes Link Icons <= 3.2.20 - Authenticated (Contributor+) Server-Side Request Forgery via Crafted Links in Post Content
The MimeTypes Link Icons plugin for WordPress is vulnerable to Server-Side Request Forgery in all versions up to, and including, 3.2.20. This is due to the plugin making outbound HTTP requests to user-controlled URLs without proper validation when the "Show f…
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High 7.2
WowOptin: Next-Gen Popup Maker <= 1.4.29 - Unauthenticated Server-Side Request Forgery via 'link' Parameter in REST API
The WowOptin: Next-Gen Popup Maker plugin for WordPress is vulnerable to Server-Side Request Forgery in all versions up to, and including, 1.4.29. This is due to the plugin exposing a publicly accessible REST API endpoint (optn/v1/integration-action) with a p…
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High 8.7
Budibase Unrestricted Server-Side Request Forgery (SSRF) via REST Datasource Query Preview
Budibase is a low code platform for creating internal tools, workflows, and admin panels. In versions from 3.30.6 and prior, the REST datasource query preview endpoint (POST /api/queries/preview) makes server-side HTTP requests to any URL supplied by the user…
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High 8.6
AVideo vulnerable to unauthenticated SSRF via HTTP redirect bypass in LiveLinks proxy
WWBN AVideo is an open source video platform. In versions 25.0 and below, the plugin/LiveLinks/proxy.php endpoint validates user-supplied URLs against internal/private networks using isSSRFSafeURL(), but only checks the initial URL. When the initial URL respo…
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High 8.7
SQLBot: SSRF to Arbitrary File Read (AFR) via Rogue MySQL
SQLBot is an intelligent data query system based on a large language model and RAG. Versions prior to 1.7.0 contain a Server-Side Request Forgery (SSRF) vulnerability that allows an attacker to retrieve arbitrary system and application files from the server. …
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High 7.1
SuiteCRM Server-Side Request Forgery and Denial of Service via RSS Feed Dashlet
SuiteCRM is an open-source, enterprise-ready Customer Relationship Management (CRM) software application. Versions prior to 7.15.1 and 8.9.3 contain a Server-Side Request Forgery (SSRF) vulnerability combined with a Denial of Service (DoS) condition in the RS…
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High 7.4
OpenClaw < 2026.2.22 - Incomplete IPv4 Special-Use Range Blocking in SSRF Guard
OpenClaw versions prior to 2026.2.22 contain incomplete IPv4 special-use range validation in the isPrivateIpv4() function, allowing requests to RFC-reserved ranges to bypass SSRF policy checks. Attackers with network reachability to special-use IPv4 ranges ca…
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High 8.6
Microsoft Purview Elevation of Privilege Vulnerability
Server-side request forgery (ssrf) in Microsoft Purview allows an unauthorized attacker to elevate privileges over a network.
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High 8.6
Microsoft Purview Elevation of Privilege Vulnerability
Server-side request forgery (ssrf) in Microsoft Purview allows an unauthorized attacker to elevate privileges over a network.
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High 7.2
OpenEMR has Out-of-Band Server-Side Request Forgery (OOB SSRF)
OpenEMR is a free and open source electronic health records and medical practice management application. Prior to 8.0.0.2, users with the `Notes - my encounters` role can fill Eye Exam forms in patient encounters. The answers to the form can be printed out in…
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High 7.4
OpenClaw < 2026.3.1 - Server-Side Request Forgery via web_search Citation Redirect
OpenClaw versions prior to 2026.3.1 contain a server-side request forgery vulnerability in web_search citation redirect resolution that uses a private-network-allowing SSRF policy. An attacker who can influence citation redirect targets can trigger internal-n…