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
1,872 results · Clear filters · Feed
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Medium 6.9
Snappy: SSRF and local file read via the xsl-style-sheet option
Snappy is a PHP library allowing thumbnail, snapshot or PDF generation from a url or a html page. Prior to version 1.7.0, there is a SSRF and local file read vulnerability via the xsl-style-sheet option. This issue has been patched in version 1.7.0.
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Medium 6.3
ftp client PASV response IP not validated against control peer, enabling SSRF and FTP bounce attacks
Server-Side Request Forgery (SSRF) vulnerability in Erlang/OTP ftp (ftp_internal module) allows FTP bounce attacks and SSRF via an unvalidated PASV response IP address. The ftp_internal:handle_ctrl_result/2 PASV handler (mode=passive, ipfamily=inet, ftp_exten…
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Medium 6.5
Roxy-WI: SSRF in /smon/agent/<endpoint>/<server_ip> reachable to cloud metadata IPs
Roxy-WI is a web interface for managing Haproxy, Nginx, Apache and Keepalived servers. In versions 8.2.6.4 and prior, the /smon/agent/{version,uptime,status,checks}/<server_ip> family of routes takes the URL path component verbatim into requests.get(f'http://…
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Medium 5.0CVE-2026-45502 EPSS 20%
Microsoft Exchange Server Information Disclosure Vulnerability
Server-side request forgery (ssrf) in Microsoft Exchange Server allows an authorized attacker to disclose information over a network.
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Medium 6.5
Microsoft Exchange Server Spoofing Vulnerability
Server-side request forgery (ssrf) in Microsoft Exchange Server allows an authorized attacker to perform spoofing over a network.
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Medium 4.2
Spring Framework Server-Side Request Forgery via UriComponentsBuilder
Due to incorrect host parsing, applications that rely on UriComponentsBuilder to parse and validate an externally provided URL string may be exposed to a server-side request forgery (SSRF) attack. Affected versions: Spring Framework 7.0.0 through 7.0.7; 6.2.0…
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Medium 4.7
jishenghua jshERP platformConfig Add Endpoint PlatformConfigService.java insertPlatformConfig server-side request forgery
A flaw has been found in jishenghua jshERP up to 3.6. Impacted is the function insertPlatformConfig of the file jshERP-boot/src/main/java/com/jsh/erp/service/PlatformConfigService.java of the component platformConfig Add Endpoint. Executing a manipulation of …
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Medium 5.3
Server-Side Request Forgery (SSRF) allowing Internal Network Probing in linqi
A Server-Side Request Forgery (SSRF) vulnerability in the custom process creation feature of linqi allows an authenticated attacker to probe internal network components. By crafting a specific process containing an HTTP Request component, an attacker can forc…
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Medium 6.5
Koha versions up to 25.11 contain a Server-Side Request Forgery (SSRF) vulnerability via the Z39.50/SRU server configur…
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Medium 6.3
wonderwhy-er DesktopCommanderMCP read_file filesystem.ts readFileFromUrl server-side request forgery
A vulnerability was identified in wonderwhy-er DesktopCommanderMCP 0.2.37. This affects the function readFileFromUrl of the file src/tools/filesystem.ts of the component read_file. Such manipulation of the argument url leads to server-side request forgery. Th…
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Medium 6.3
ahujasid blender-mcp ZIP File server.py requests.get server-side request forgery
A vulnerability was found in ahujasid blender-mcp up to 7636d13bded82eca58eb93c3f4cd8708dfdfbe8b. The affected element is the function requests.get of the file src/blender_mcp/server.py of the component ZIP File Handler. The manipulation of the argument zip_f…
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Medium 4.7
nextlevelbuilder GoClaw TTS Configuration Endpoint tts_config.go import server-side request forgery
A security vulnerability has been detected in nextlevelbuilder GoClaw up to 3.11.3. Affected by this issue is the function Import of the file internal/http/tts_config.go of the component TTS Configuration Endpoint. The manipulation leads to server-side reques…
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Medium 6.3
DedeCMS download.php base64_decode server-side request forgery
A flaw has been found in DedeCMS 5.7.88. Affected by this vulnerability is the function base64_decode of the file /plus/download.php?open=1. This manipulation of the argument Link causes server-side request forgery. Remote exploitation of the attack is possib…
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Medium 5.0
Nanobot < 0.2.1 SSRF via web_fetch Tool Redirect Following
Nanobot prior to version 0.2.1 contains a server-side request forgery vulnerability in the web_fetch tool that allows remote attackers to reach internal or private network hosts by supplying a URL that redirects to a loopback or private address via a 3xx Loca…
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Medium 6.3
hekmon8 Jenkins-server-mcp get_build_status/get_build_log/trigger_build index.ts jobPath server-side request forgery
A vulnerability has been found in hekmon8 Jenkins-server-mcp 0.1.0. This vulnerability affects the function jobPath of the file src/index.ts of the component get_build_status/get_build_log/trigger_build. Such manipulation leads to server-side request forgery.…
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Medium 6.3
indrasishbanerjee aem-mcp-server Axios Request Flow mcp-server.ts getAssetMetadata server-side request forgery
A vulnerability was determined in indrasishbanerjee aem-mcp-server up to b5f833aef9b5dfd17a5991b3b18a8a11edbdc583. This impacts the function getAssetMetadata of the file src/mcp-server.ts of the component Axios Request Flow. Executing a manipulation of the ar…
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Medium 5.3
Apache Fesod (Incubating): Improper validation of user-supplied URLs leading to SSRF
Server-Side Request Forgery (SSRF) in the UrlImageConverter component of Apache Fesod (Incubating) fesod-sheet before 2.0.2-incubating allows attackers to cause outbound network requests to internal or otherwise restricted resources via a user-supplied image …
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Medium 6.3
jeecgboot The server processes these URLs Cloud Instance Metadata Endpoint debug FileDownloadUtils.download2DiskFromNet server-side request forgery
A security flaw has been discovered in jeecgboot The server processes these URLs up to 3.9.1. This affects the function FileDownloadUtils.download2DiskFromNet of the file /airag/app/debug of the component Cloud Instance Metadata Endpoint. The manipulation res…
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Medium 6.3
JeecgBoot test server-side request forgery
A vulnerability was identified in JeecgBoot up to 3.9.2. The impacted element is an unknown function of the file /airag/airagModel/test. The manipulation of the argument baseUrl leads to server-side request forgery. The attack is possible to be carried out re…
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Medium 6.3
JeecgBoot edit WordUtil.addImage server-side request forgery
A vulnerability was determined in JeecgBoot up to 3.9.2. The affected element is the function WordUtil.addImage of the file /airag/word/edit. Executing a manipulation can lead to server-side request forgery. The attack can be executed remotely. The exploit ha…
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Medium 6.3
Aider-AI Aider AWS EC2 Metadata Endpoint api_docs.py requests.get server-side request forgery
A security vulnerability has been detected in Aider-AI Aider 0.86.3. This affects the function requests.get of the file api_docs.py of the component AWS EC2 Metadata Endpoint. The manipulation leads to server-side request forgery. The attack is possible to be…
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Medium 6.9
SillyTavern: SSRF vulnerability in the CORS proxy middleware
SillyTavern is a locally installed user interface that allows users to interact with text generation large language models, image generation engines, and text-to-speech voice models. Prior to 1.18.0, corsProxyMiddleware forwards req.params.url directly into f…
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Medium 5.4
Statamic: Server-Side Request Forgery via Glide
Statamic is a Laravel and Git powered content management system (CMS). Prior to 5.73.22 and 6.18.1, the Glide image proxy's URL validation could be bypassed using an IP representation that wasn't normalized before the public-IP check. An unauthenticated user …
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Medium 6.5
AVideo CVE-2026-43884 incomplete fix - `isSSRFSafeURL()` call sites still discard the `$resolvedIP` out-param at master HEAD post
WWBN AVideo is an open source video platform. In 29.0 and earlier, EpgParser.php, plugin/AI/receiveAsync.json.php, and other locations do not use the $resolvedIP out-param of isSSRFSafeURL() for DNS pinning via CURLOPT_RESOLVE, opening DNS-rebinding TOCTOU.
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Medium 6.4
Mautic Focus component Vulnerable to SSRF
A Server-Side Request Forgery (SSRF) vulnerability exists in Mautic's Focus component. Due to insufficient validation of user-supplied URLs, an authenticated user can trigger outbound HTTP requests from the hosting server, enabling internal network reconnaiss…
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Medium 4.1
Quay/config-tool: quay/config-tool: ssrf via unfiltered ldap and smtp config validation endpoints
A flaw was found in the Quay config-tool's LDAP and SMTP validation functions. An attacker with config editor access can exploit these functions, which make outbound connections to user-supplied endpoints without proper IP or host filtering. This allows the a…
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Medium 4.7
typescript-utcp: SSRF via attacker-controlled OpenAPI servers[0].url in HTTP communication protocol
typescript-utcp is a typescript implementation of UTCP. Prior to 1.1.2, the @utcp/http package is vulnerable to a blind Server-Side Request Forgery (SSRF) caused by a trust-boundary inconsistency between manual discovery and tool invocation. registerManual() …
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Medium 6.3
Server-Side Request Forgery (SSRF) in Kibana Leading to Unauthorized Network Access
Server-Side Request Forgery (CWE-918) in Kibana can allow an authenticated user with connector management privileges to bypass the operator-configured connector allowlist, causing the Kibana server to issue outbound requests to destinations the egress control…
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Medium 5.8
Music Player Daemon < 0.24.11 SSRF via CurlInputPlugin
Music Player Daemon (MPD) before version 0.24.11 contains a server-side request forgery vulnerability in CurlInputPlugin where CURLOPT_FOLLOWLOCATION is set without CURLOPT_REDIR_PROTOCOLS_STR, allowing unauthenticated attackers to bypass the http/https schem…
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Medium 5.0
Local Deep Research: HTML Injection via Unescaped User Input in PDF Export (`pdf_service.py:_markdown_to_html`)
Local Deep Research is an AI-powered research assistant for deep, iterative research. Prior to 1.6.0, PDFService._markdown_to_html() constructs an HTML document by interpolating user-controlled values — specifically title (sourced from research.title or resea…
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Medium 5.0
Local Deep Research: SSRF bypass in `safe_get`
Local Deep Research is an AI-powered research assistant for deep, iterative research. Prior to 1.6.10, the URL checking logic in local-deep-research has a logical flaw that could be bypassed by attackers, leading to SSRF attacks. The current project uses vali…
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Medium 5.0
pyLoad: SSRF via HTTP Redirect Bypass in parse_urls API
pyLoad is a free and open-source download manager written in Python. Prior to 0.5.0b3.dev100, the PREREQFUNCTION-based private IP check was not applied to HTTPRequest (used by the parse_urls API). An authenticated attacker can supply a URL pointing to an atta…
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Medium 4.2
PyJWKClient: missing scheme allowlist enables SSRF + token forgery via file://, ftp://, data: schemes
PyJWT is a JSON Web Token implementation in Python. Prior to 2.13.0, PyJWKClient passes its uri argument directly to urllib.request.urlopen() which uses Python stdlib's default OpenerDirector registering HTTPHandler, HTTPSHandler, FTPHandler, FileHandler, and…
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Medium 6.2
FlowIntel external reference URL probe allows server-side request forgery
FlowIntel up to version 3.3.0 contains a server-side request forgery (SSRF) vulnerability in the external reference URL probe functionality in app/case/task.py. An attacker who can submit an external reference URL can cause the application server to issue an …
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Medium 6.5
Independent Analytics <= 2.14.9 - Unauthenticated Server-Side Request Forgery via Tracking Route
The Independent Analytics plugin for WordPress is vulnerable to Server-Side Request Forgery in all versions up to, and including, 2.14.9. This is due to a public tracking route at /wp-json/iawp/search that accepts attacker-controlled referrer_url values when …
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Medium 5.3
Budibase: Unvalidated VectorDB Host Parameter Enables SSRF
Budibase is an open-source low-code platform. Prior to 3.35.3, the VectorDB configuration endpoint in Budibase accepts a host parameter that undergoes no validation against internal IP ranges, reserved hostnames, or URL schemes. Any authenticated user with bu…
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Medium 5.1
Budibase: SSRF via User-Controlled queryId in Automation Execute Query Step
Budibase is an open-source low-code platform. Prior to 3.39.0, the executeQuery automation step in Budibase accepts a queryId from automation step inputs and passes it directly to the query execution controller without additional validation. When combined wit…
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Medium 6.1
Tauri: Origin Confusion Allows Remote Pages to Invoke Local-Only IPC Commands
Tauri is a framework for building binaries for all major desktop platforms. From 2.0 to 2.11.0, a flaw in Tauri's is_local_url() function causes it to incorrectly classify remote URLs as trusted local origins on Windows and Android. On these systems, Tauri ma…
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Medium 6.6
Jenkins Active Directory Plugin follows LDAP referrals by default
Jenkins Active Directory Plugin 2.41 and earlier follows LDAP referrals by default.
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Medium 6.6
Jenkins LDAP Plugin follows LDAP referrals
Jenkins LDAP Plugin 807.v7d7de30930cf and earlier follows LDAP referrals.