CWE-918
AllowedServer-Side Request Forgery (SSRF)
Abstraction: Base · Status: 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.
6154 vulnerabilities reference this CWE, most recent first.
GHSA-G366-23FW-GGP6
Vulnerability from github – Published: 2026-08-04 21:25 – Updated: 2026-08-04 21:25Impact
When re-rendering posts, Ghost would refetch missing image dimensions by issuing an outbound HTTP request to the URL stored on an image card — without restricting that URL to trusted image hosts. An authenticated staff user able to create or edit posts could therefore point an image card at an attacker-chosen host and cause the Ghost server to request it on their behalf, including hosts on internal networks or cloud instance metadata endpoints that would not normally be reachable from the public internet.
Vulnerable versions
This vulnerability is present in Ghost from v6.19.3 up to v6.21.0.
Patches
v6.21.1 contains a fix for this issue.
How to update
For self-hosters using Docker, find Docker's official Ghost image here. Updating a Docker-based Ghost instance is documented here.
If your Ghost is a Ghost-CLI install see our documentation on updating it to the latest version here.
For more information
If you have any questions or comments about this advisory, email us at security@ghost.org.
{
"affected": [
{
"database_specific": {
"last_known_affected_version_range": "\u003c 6.21.1"
},
"package": {
"ecosystem": "npm",
"name": "ghost"
},
"ranges": [
{
"events": [
{
"introduced": "6.19.4"
},
{
"fixed": "6.21.2"
}
],
"type": "ECOSYSTEM"
}
]
}
],
"aliases": [
"CVE-2026-53946"
],
"database_specific": {
"cwe_ids": [
"CWE-918"
],
"github_reviewed": true,
"github_reviewed_at": "2026-08-04T21:25:21Z",
"nvd_published_at": "2026-06-24T19:17:12Z",
"severity": "MODERATE"
},
"details": "### Impact\n\nWhen re-rendering posts, Ghost would refetch missing image dimensions by issuing an outbound HTTP request to the URL stored on an image card \u2014 without restricting that URL to trusted image hosts. An authenticated staff user able to create or edit posts could therefore point an image card at an attacker-chosen host and cause the Ghost server to request it on their behalf, including hosts on internal networks or cloud instance metadata endpoints that would not normally be reachable from the public internet.\n\n### Vulnerable versions\n\nThis vulnerability is present in Ghost from v6.19.3 up to v6.21.0.\n\n### Patches\n\nv6.21.1 contains a fix for this issue.\n\n### How to update\n\nFor self-hosters using Docker, find [Docker\u0027s official Ghost image here](https://hub.docker.com/_/ghost). Updating a Docker-based Ghost instance [is documented here](https://docs.ghost.org/install/docker#updating-ghost). \n\nIf your Ghost is a Ghost-CLI install see our documentation on [updating it to the latest version here](https://docs.ghost.org/update). \n\n### For more information\n\nIf you have any questions or comments about this advisory, email us at [security@ghost.org](mailto:security@ghost.org).",
"id": "GHSA-g366-23fw-ggp6",
"modified": "2026-08-04T21:25:21Z",
"published": "2026-08-04T21:25:21Z",
"references": [
{
"type": "WEB",
"url": "https://github.com/TryGhost/Ghost/security/advisories/GHSA-g366-23fw-ggp6"
},
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-53946"
},
{
"type": "WEB",
"url": "https://github.com/TryGhost/Ghost/pull/26753"
},
{
"type": "WEB",
"url": "https://github.com/TryGhost/Ghost/commit/ba692df7f27162d0440d57487f16c530416a8eb2"
},
{
"type": "PACKAGE",
"url": "https://github.com/TryGhost/Ghost"
},
{
"type": "WEB",
"url": "https://github.com/TryGhost/Ghost/releases/tag/v6.21.1"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N",
"type": "CVSS_V3"
}
],
"summary": "Ghost: Mobiledoc image-size fetch SSRF"
}
GHSA-G378-8VQ5-M8FM
Vulnerability from github – Published: 2024-12-19 18:31 – Updated: 2025-01-02 21:31A Server-Side Request Forgery (SSRF) in the endpoint http://{your-server}/url-to-pdf of Stirling-PDF 0.35.1 allows attackers to access sensitive information via a crafted request.
{
"affected": [],
"aliases": [
"CVE-2024-55082"
],
"database_specific": {
"cwe_ids": [
"CWE-918"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2024-12-19T16:15:09Z",
"severity": "HIGH"
},
"details": "A Server-Side Request Forgery (SSRF) in the endpoint http://{your-server}/url-to-pdf of Stirling-PDF 0.35.1 allows attackers to access sensitive information via a crafted request.",
"id": "GHSA-g378-8vq5-m8fm",
"modified": "2025-01-02T21:31:41Z",
"published": "2024-12-19T18:31:37Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-55082"
},
{
"type": "WEB",
"url": "https://gist.github.com/summerxxoo/f98033dbf1ab81a045c1196c3a1ab3ef"
},
{
"type": "WEB",
"url": "https://github.com/summerxxoo/VulnPoc/blob/main/Stirling-PDF-%20Server-Side%20Request%20Forgery%28SSRF%29%20vulnerability.md"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N",
"type": "CVSS_V3"
}
]
}
GHSA-G3FM-CR7X-PWVJ
Vulnerability from github – Published: 2026-07-30 12:32 – Updated: 2026-09-14 06:31A flaw was found in Dogtag PKI's ACME responder where the HTTP-01 challenge validator accepts IP address literals as dns identifiers and follows HTTP redirects without validating that the target is a public address. An unauthenticated ACME account holder can exploit this to perform server-side request forgery (SSRF), making the Dogtag server send HTTP GET requests to internal network services. With the InMemory database backend, the response body of internal targets is disclosed to the attacker through the ACME challenge error.
{
"affected": [],
"aliases": [
"CVE-2026-18369"
],
"database_specific": {
"cwe_ids": [
"CWE-918"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-07-30T11:16:26Z",
"severity": "MODERATE"
},
"details": "A flaw was found in Dogtag PKI\u0027s ACME responder where the HTTP-01 challenge validator accepts IP address literals as dns identifiers and follows HTTP redirects without validating that the target is a public address. An unauthenticated ACME account holder can exploit this to perform server-side request forgery (SSRF), making the Dogtag server send HTTP GET requests to internal network services. With the InMemory database backend, the response body of internal targets is disclosed to the attacker through the ACME challenge error.",
"id": "GHSA-g3fm-cr7x-pwvj",
"modified": "2026-09-14T06:31:16Z",
"published": "2026-07-30T12:32:18Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-18369"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2026:67110"
},
{
"type": "WEB",
"url": "https://access.redhat.com/security/cve/CVE-2026-18369"
},
{
"type": "WEB",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2509234"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:N/A:N",
"type": "CVSS_V3"
}
]
}
GHSA-G3GJ-632X-FHRH
Vulnerability from github – Published: 2022-05-13 01:31 – Updated: 2024-01-30 22:18A server-side request forgery vulnerability exists in Jenkins JMS Messaging Plugin 1.1.1 and earlier in SSLCertificateAuthenticationMethod.java, UsernameAuthenticationMethod.java that allows attackers with Overall/Read permission to have Jenkins connect to a JMS endpoint.
{
"affected": [
{
"database_specific": {
"last_known_affected_version_range": "\u003c= 1.1.1"
},
"package": {
"ecosystem": "Maven",
"name": "org.jenkins-ci.plugins:jms-messaging"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "1.1.2"
}
],
"type": "ECOSYSTEM"
}
]
}
],
"aliases": [
"CVE-2019-1003028"
],
"database_specific": {
"cwe_ids": [
"CWE-918"
],
"github_reviewed": true,
"github_reviewed_at": "2024-01-30T22:18:42Z",
"nvd_published_at": "2019-02-20T21:29:00Z",
"severity": "MODERATE"
},
"details": "A server-side request forgery vulnerability exists in Jenkins JMS Messaging Plugin 1.1.1 and earlier in SSLCertificateAuthenticationMethod.java, UsernameAuthenticationMethod.java that allows attackers with Overall/Read permission to have Jenkins connect to a JMS endpoint.",
"id": "GHSA-g3gj-632x-fhrh",
"modified": "2024-01-30T22:18:42Z",
"published": "2022-05-13T01:31:33Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2019-1003028"
},
{
"type": "WEB",
"url": "https://jenkins.io/security/advisory/2019-02-19/#SECURITY-1033"
},
{
"type": "WEB",
"url": "http://www.securityfocus.com/bid/107295"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N",
"type": "CVSS_V3"
}
],
"summary": "SSRF vulnerability due to missing permission check in Jenkins JMS Messaging Plugin"
}
GHSA-G3JP-2GFC-XJQ6
Vulnerability from github – Published: 2023-01-27 18:30 – Updated: 2023-02-06 21:30A blind SSRF vulnerability was identified in all versions of GitLab EE prior to 15.4.6, 15.5 prior to 15.5.5, and 15.6 prior to 15.6.1 which allows an attacker to connect to a local host.
{
"affected": [],
"aliases": [
"CVE-2022-4335"
],
"database_specific": {
"cwe_ids": [
"CWE-918"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2023-01-27T18:15:00Z",
"severity": "MODERATE"
},
"details": "A blind SSRF vulnerability was identified in all versions of GitLab EE prior to 15.4.6, 15.5 prior to 15.5.5, and 15.6 prior to 15.6.1 which allows an attacker to connect to a local host.",
"id": "GHSA-g3jp-2gfc-xjq6",
"modified": "2023-02-06T21:30:34Z",
"published": "2023-01-27T18:30:31Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2022-4335"
},
{
"type": "WEB",
"url": "https://hackerone.com/reports/1462437"
},
{
"type": "WEB",
"url": "https://gitlab.com/gitlab-org/cves/-/blob/master/2022/CVE-2022-4335.json"
},
{
"type": "WEB",
"url": "https://gitlab.com/gitlab-org/gitlab/-/issues/353018"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N",
"type": "CVSS_V3"
}
]
}
GHSA-G3QF-PQH8-4Q8M
Vulnerability from github – Published: 2022-05-14 03:31 – Updated: 2022-05-14 03:31I, Librarian version 4.8 and earlier contains a SSRF vulnerability in "url" parameter of getFromWeb in functions.php that can result in the attacker abusing functionality on the server to read or update internal resources.
{
"affected": [],
"aliases": [
"CVE-2018-1000138"
],
"database_specific": {
"cwe_ids": [
"CWE-918"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2018-03-23T21:29:00Z",
"severity": "CRITICAL"
},
"details": "I, Librarian version 4.8 and earlier contains a SSRF vulnerability in \"url\" parameter of getFromWeb in functions.php that can result in the attacker abusing functionality on the server to read or update internal resources.",
"id": "GHSA-g3qf-pqh8-4q8m",
"modified": "2022-05-14T03:31:37Z",
"published": "2022-05-14T03:31:37Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2018-1000138"
},
{
"type": "WEB",
"url": "https://github.com/mkucej/i-librarian/issues/120"
},
{
"type": "WEB",
"url": "https://github.com/mkucej/i-librarian/blob/9535753a84bc615b210802d4c9542db73368d984/functions.php#L811"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N",
"type": "CVSS_V3"
}
]
}
GHSA-G3VP-W6M7-PM74
Vulnerability from github – Published: 2022-05-24 19:15 – Updated: 2022-05-24 19:15The third party intelligence connector in Securonix SNYPR 6.3.1 Build 184295_0302 allows an authenticated user to obtain access to server configuration details via SSRF.
{
"affected": [],
"aliases": [
"CVE-2021-41385"
],
"database_specific": {
"cwe_ids": [
"CWE-918"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2021-09-27T06:15:00Z",
"severity": "MODERATE"
},
"details": "The third party intelligence connector in Securonix SNYPR 6.3.1 Build 184295_0302 allows an authenticated user to obtain access to server configuration details via SSRF.",
"id": "GHSA-g3vp-w6m7-pm74",
"modified": "2022-05-24T19:15:54Z",
"published": "2022-05-24T19:15:54Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2021-41385"
},
{
"type": "WEB",
"url": "https://documentation.securonix.com/onlinedoc/Content/Product%20Security/Content/Product%20Security/Authenticated%20SSRF%20in%20TPI.htm"
}
],
"schema_version": "1.4.0",
"severity": []
}
GHSA-G3W3-X2XJ-4585
Vulnerability from github – Published: 2022-05-14 01:46 – Updated: 2022-05-14 01:46admin/functions/remote.php in Interspire Email Marketer through 6.1.6 has Server Side Request Forgery (SSRF) via a what=importurl&url= request with an http or https URL. This also allows reading local files with a file: URL.
{
"affected": [],
"aliases": [
"CVE-2018-19651"
],
"database_specific": {
"cwe_ids": [
"CWE-918"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2018-11-28T22:29:00Z",
"severity": "MODERATE"
},
"details": "admin/functions/remote.php in Interspire Email Marketer through 6.1.6 has Server Side Request Forgery (SSRF) via a what=importurl\u0026url= request with an http or https URL. This also allows reading local files with a file: URL.",
"id": "GHSA-g3w3-x2xj-4585",
"modified": "2022-05-14T01:46:42Z",
"published": "2022-05-14T01:46:42Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2018-19651"
},
{
"type": "WEB",
"url": "https://medium.com/@namhb/ssrf-to-lfi-in-interspire-email-marketer-698a748462a9"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N",
"type": "CVSS_V3"
}
]
}
GHSA-G42R-M263-958H
Vulnerability from github – Published: 2026-08-28 12:30 – Updated: 2026-08-28 12:30SiYuan versions before v3.8.1 contain a server-side request forgery vulnerability in the http_request and web_fetch agent tools that perform DNS resolution only at guard time without validating the connect-time resolution. Attackers can use DNS rebinding to answer the guard resolution with a public IP and the connect resolution with a private or metadata IP, bypassing the SSRF defense to access cloud instance metadata and internal services.
{
"affected": [],
"aliases": [
"CVE-2026-82234"
],
"database_specific": {
"cwe_ids": [
"CWE-918"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-08-28T12:16:33Z",
"severity": "HIGH"
},
"details": "SiYuan versions before v3.8.1 contain a server-side request forgery vulnerability in the http_request and web_fetch agent tools that perform DNS resolution only at guard time without validating the connect-time resolution. Attackers can use DNS rebinding to answer the guard resolution with a public IP and the connect resolution with a private or metadata IP, bypassing the SSRF defense to access cloud instance metadata and internal services.",
"id": "GHSA-g42r-m263-958h",
"modified": "2026-08-28T12:30:26Z",
"published": "2026-08-28T12:30:26Z",
"references": [
{
"type": "WEB",
"url": "https://github.com/siyuan-note/siyuan/security/advisories/GHSA-x8gv-g2g3-65fj"
},
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-82234"
},
{
"type": "WEB",
"url": "https://www.vulncheck.com/advisories/siyuan-before-3.8.1-ssrf-via-dns-rebinding-toctou"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:L/A:N",
"type": "CVSS_V3"
},
{
"score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:H/VI:L/VA:N/SC:H/SI:L/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X",
"type": "CVSS_V4"
}
]
}
GHSA-G44M-HPF4-VMRP
Vulnerability from github – Published: 2025-03-20 12:32 – Updated: 2025-03-21 16:41A Server-Side Request Forgery (SSRF) vulnerability was identified in the lm-sys/fastchat web server, specifically in the affected version git 2c68a13. This vulnerability allows an attacker to access internal server resources and data that are otherwise inaccessible, such as AWS metadata credentials.
{
"affected": [
{
"package": {
"ecosystem": "PyPI",
"name": "fschat"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"last_affected": "0.2.36"
}
],
"type": "ECOSYSTEM"
}
]
}
],
"aliases": [
"CVE-2024-12376"
],
"database_specific": {
"cwe_ids": [
"CWE-918"
],
"github_reviewed": true,
"github_reviewed_at": "2025-03-21T16:41:12Z",
"nvd_published_at": "2025-03-20T10:15:27Z",
"severity": "HIGH"
},
"details": "A Server-Side Request Forgery (SSRF) vulnerability was identified in the lm-sys/fastchat web server, specifically in the affected version git 2c68a13. This vulnerability allows an attacker to access internal server resources and data that are otherwise inaccessible, such as AWS metadata credentials.",
"id": "GHSA-g44m-hpf4-vmrp",
"modified": "2025-03-21T16:41:12Z",
"published": "2025-03-20T12:32:43Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-12376"
},
{
"type": "PACKAGE",
"url": "https://github.com/lm-sys/FastChat"
},
{
"type": "WEB",
"url": "https://huntr.com/bounties/c9cc3f28-ee9f-4d2d-9ee5-8c6455a11892"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N",
"type": "CVSS_V3"
}
],
"summary": "FastChat Server-Side Request Forgery vulnerability"
}
No mitigation information available for this CWE.
CAPEC-664: Server Side Request Forgery
An adversary exploits improper input validation by submitting maliciously crafted input to a target application running on a server, with the goal of forcing the server to make a request either to itself, to web services running in the server’s internal network, or to external third parties. If successful, the adversary’s request will be made with the server’s privilege level, bypassing its authentication controls. This ultimately allows the adversary to access sensitive data, execute commands on the server’s network, and make external requests with the stolen identity of the server. Server Side Request Forgery attacks differ from Cross Site Request Forgery attacks in that they target the server itself, whereas CSRF attacks exploit an insecure user authentication mechanism to perform unauthorized actions on the user's behalf.