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
159 results · Clear filters · Feed
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Low 1.7
@backstage/plugin-auth-backend: SSRF in experimental CIMD metadata fetch
Backstage is an open framework for building developer portals. Prior to 0.27.1, a Server-Side Request Forgery (SSRF) vulnerability exists in @backstage/plugin-auth-backend when auth.experimentalClientIdMetadataDocuments.enabled is set to true. The CIMD metada…
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Low 3.0
Blind SSRF on OpenProject instance via webhooks
OpenProject is an open-source, web-based project management software. Prior to 17.2.0, OpenProject SMTP test endpoint (POST /admin/settings/mail_notifications) accepts arbitrary host and port values and exhibits measurable differences in response behaviour de…
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Low —
OpenClaw: Microsoft Teams media fetch paths bypass shared SSRF guard model
## Impact Microsoft Teams media handling used mixed fetch paths for Graph metadata/content and attachment auth-retry flows. Some paths bypassed the shared SSRF guard model and created inconsistent host/DNS enforcement across redirect/fetch hops. ## Affected P…
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Low 2.1
ZITADEL has potential SSRF via Actions
ZITADEL is an open source identity management platform. Zitadel Action V2 (introduced as early preview in 2.59.0, beta in 3.0.0 and GA in 4.0.0) is a webhook based approach to allow developers act on API request to Zitadel and customize flows such the issue o…
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Low 3.1
feiyuchuixue sz-boot-parent download server-side request forgery
A weakness has been identified in feiyuchuixue sz-boot-parent up to 1.3.2-beta. This vulnerability affects unknown code of the file /api/admin/common/files/download. Executing a manipulation of the argument url can lead to server-side request forgery. The att…
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Low 3.7
LangChain affected by SSRF via image_url token counting in ChatOpenAI.get_num_tokens_from_messages
LangChain is a framework for building agents and LLM-powered applications. Prior to 1.2.11, the ChatOpenAI.get_num_tokens_from_messages() method fetches arbitrary image_url values without validation when computing token counts for vision-enabled models. This …
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Low 3.7
webpack buildHttp HttpUriPlugin allowedUris bypass via HTTP redirects
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 …
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Low 3.7
webpack buildHttp: allowedUris allow-list bypass via URL userinfo (@) leading to build-time SSRF behavior
Webpack is a module bundler. From version 5.49.0 to before 5.104.1, when experiments.buildHttp is enabled, webpack’s HTTP(S) resolver (HttpUriPlugin) can be bypassed to fetch resources from hosts outside allowedUris by using crafted URLs that include userinfo…
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Low 3.5
Backstage has a Possible SSRF when reading from allowed URL's in `backend.reading.allow`
Backstage is an open framework for building developer portals, and @backstage/backend-defaults provides the default implementations and setup for a standard Backstage backend app. Prior to versions 0.12.2, 0.13.2, 0.14.1, and 0.15.0, the `FetchUrlReader` comp…
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Low 2.2
Church Admin <= 5.0.28 - Authenticated (Administrator+) Blind Server-Side Request Forgery via 'audio_url' Parameter
The Church Admin plugin for WordPress is vulnerable to Server-Side Request Forgery in all versions up to, and including, 5.0.28 due to insufficient validation of user-supplied URLs in the 'audio_url' parameter. This makes it possible for authenticated attacke…
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Low 3.4
A Server-Side Request Forgery (SSRF) vulnerability [CWE-918] vulnerability in Fortinet FortiSandbox 5.0.0 through 5.0.4…
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Low 2.1
Metabase channel test endpoint can reach internal local addresses
Metabase is an open-source data analytics platform. Prior to 55.13, 56.3, and 57.1, self-hosted Metabase instances that allow users to create subscriptions could be potentially impacted if their Metabase is colocated with other unsecured resources. This vulne…
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Low 2.7
Blind Server Side Request Forgery (SSRF) through Distributed Search Peers in Splunk Enterprise
In Splunk Enterprise versions below 10.0.1, 9.4.6, 9.3.8, and 9.2.10, and Splunk Cloud Platform versions below 10.1.2507.4, 10.0.2503.7, and 9.3.2411.116, a user who holds a role that contains the high privilege capability `change_authentication` could enumer…
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Low 2.1
Blind Server-Side Request Forgery (SSRF) in the survey-import feature of ObjectPlanet Opinio
Blind Server-Side Request Forgery (SSRF) in the survey-import feature of ObjectPlanet Opinio 7.26 rev12562 on Web-based platforms allows an attacker to force the server to perform HTTP GET requests via crafted import requests to an arbitrary destination.
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Low 3.8
A Server-side Request Forgery vulnerability was found in the Application Server of Desktop Alert PingAlert version 6.1.…
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Low 2.3
LinkAce: Limited Server-Side Request Forgery (SSRF) in Keyword Fetching Functionality
LinkAce is a self-hosted archive to collect website links. In versions 2.3.0 and below, the htmlKeywordsFromUrl function in the FetchController class accepts user-provided URLs and makes HTTP requests to them without validating that the destination is not an …
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Low 2.7
Shopware vulnerable to Server-Side Request Forgery (SSRF) – order invoice
### Impact This vulnerability allows malicious actors to force the application server to send HTTP requests to both external and internal servers. In certain cases, this may lead to access to internal resources such as databases, file systems, or other servic…
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Low 3.0
SSRF in lobehub/lobe-chat with native web fetch module
LobeChat is an open source chat application platform. The web-crawler package in LobeChat version 1.136.1 allows server-side request forgery (SSRF) in the tools.search.crawlPages tRPC endpoint. A client can supply an arbitrary urls array together with impls c…
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Low 3.5
HCL Unica Centralized Offer Management is vulnerable to a potential Server-Side Request Forgery (SSRF)
HCL Unica Centralized Offer Management is vulnerable to a potential Server-Side Request Forgery (SSRF). An attacker can exploit improper input validation by submitting maliciously crafted input to a target application running on a server.
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Low 1.8
Server-side request forgery in Secure Access
CVE-2025-54087 is a server-side request forgery vulnerability in Secure Access prior to version 14.10. Attackers with administrative privileges can publish a crafted test HTTP request originating from the Secure Access server. The attack complexity is high, t…
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Low 3.2
The ip (aka node-ip) package through 2.0.1 (in NPM) might allow SSRF because the IP address value 0 is improperly categ…
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Low 3.2
The ip (aka node-ip) package through 2.0.1 (in NPM) might allow SSRF because the IP address value 017700000001 is impro…
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Low 2.7
SSRF via webhook function
SummaryUsers with webhook permissions can conduct SSRF via webhooks. If they have permission to view the webhook logs, the (partial) request response is also disclosed DetailsWhen sending webhooks, the destination is not validated, causing SSRF. ImpactBypass …
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Low 3.5
Knowage vulnerable to server-side request forgery
Knowage is an open source analytics and business intelligence suite. Prior to version 8.1.37, Knowage is vulnerable to server-side request forgery. The vulnerability allows attackers to send requests to arbitrary hosts/paths. Since the attacker is not able to…
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Low 3.5
AI plugin APIs can be triggered using post actions
Mattermost Server versions 10.5.x <= 10.5.9 utilizing the Agents plugin fail to reject empty request bodies which allows users to trick users into clicking malicious links via post actions
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Low 2.7
ColdFusion | Server-Side Request Forgery (SSRF) (CWE-918)
ColdFusion versions 2025.1, 2023.13, 2021.19 and earlier are affected by a Server-Side Request Forgery (SSRF) vulnerability that could lead to limited file system read. A high-privilege authenticated attacker can force the application to make arbitrary reques…
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Low 3.8
Quttera Web Malware Scanner <= 3.5.1.41 - Authenticated (Administrator+) Server-Side Request Forgery
The Quttera Web Malware Scanner plugin for WordPress is vulnerable to Server-Side Request Forgery in all versions up to, and including, 3.5.1.41 via the 'RunExternalScan' function. This makes it possible for authenticated attackers, with Administrator-level a…
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Low 3.5
GLPI has overly permissive URL verification
GLPI is a Free Asset and IT Management Software package, Data center management, ITIL Service Desk, licenses tracking and software auditing. In versions 0.84 through 10.0.18, usage of RSS feeds or external calendars when planning is subject to SSRF exploit. T…
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Low 3.7
Null byte termination in hostnames
In PHP versions:8.1.* before 8.1.33, 8.2.* before 8.2.29, 8.3.* before 8.3.23, 8.4.* before 8.4.10 some functions like fsockopen() lack validation that the hostname supplied does not contain null characters. This may lead to other functions like parse_url() t…
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Low 3.7CVE-2025-51591 Public exploit
A Server-Side Request Forgery (SSRF) in JGM Pandoc v3.6.4 allows attackers to gain access to and compromise the whole i…
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Low 3.0
Lychee has Server-Side Request Forgery (SSRF) in Photo::fromUrl API via unvalidated remote image URLs
Lychee is a free, open-source photo-management tool. Prior to version 6.6.13, a critical Server-Side Request Forgery (SSRF) vulnerability exists in the `/api/v2/Photo::fromUrl` endpoint. This flaw lets an attacker instruct the application’s backend to make HT…
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Low 2.7
PowSyBl Core XML Reader allows XXE and SSRF
PowSyBl (Power System Blocks) is a framework to build power system oriented software. Prior to version 6.7.2, in certain places, powsybl-core XML parsing is vulnerable to an XML external entity (XXE) attack and to a server-side request forgery (SSRF) attack. …
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Low 3.7
Server-Side Request Forgery in SAP Business Objects Business Intelligence Platform
Under certain conditions, SAP Business Objects Business Intelligence Platform allows an unauthenticated attacker to enumerate HTTP endpoints in the internal network by specially crafting HTTP requests. This disclosure of information could further enable the r…
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Low 3.3
TYPO3 Vulnerable to Server Side Request Forgery via Webhooks
TYPO3 is an open source, PHP based web content management system. In versions on the 12.x branch prior to 12.4.31 LTS and the 13.x branch prior to 13.4.2 LTS, Webhooks are inherently vulnerable to Cross-Site Request Forgery (CSRF), which can be exploited by a…
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Low 2.7
playeduxyz PlayEdu 开源培训系统 User Avatar create server-side request forgery
A vulnerability was found in playeduxyz PlayEdu 开源培训系统 up to 1.8 and classified as problematic. This issue affects some unknown processing of the file /api/backend/v1/user/create of the component User Avatar Handler. The manipulation of the argument Avatar le…
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Low 3.7
ChurchCRM Referer server-side request forgery
A vulnerability, which was classified as problematic, has been found in ChurchCRM 5.16.0. Affected by this issue is some unknown functionality of the component Referer Handler. The manipulation leads to server-side request forgery. The attack may be launched …
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Low 3.8
IBM Maximo Asset Management server-side request forgery
IBM Maximo Asset Management 7.6.1.3 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.
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Low 2.7
PbootCMS Image server-side request forgery
A vulnerability was found in PbootCMS 3.2.5. It has been classified as problematic. Affected is an unknown function of the component Image Handler. The manipulation leads to server-side request forgery. It is possible to launch the attack remotely. The exploi…
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Low 2.7
mirweiye Seven Bears Library CMS Add Link server-side request forgery
A vulnerability was found in mirweiye Seven Bears Library CMS 2023. It has been classified as problematic. Affected is an unknown function of the component Add Link Handler. The manipulation leads to server-side request forgery. It is possible to launch the a…
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Low 3.5
Server Side Request Forgery (SSRF) in SAP CRM and SAP S/4 HANA (Interaction Center)
Under certain conditions, an SSRF vulnerability in SAP CRM and SAP S/4HANA (Interaction Center) allows an attacker with low privileges to access restricted information. This flaw enables the attacker to send requests to internal network resources, thereby com…