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GHSA-p8c7-hjc4-gwf8 CVE-2026-5469 GO-2026-5535

Casdoor vulnerable to SSRF via crafted Webhook URL

High Go
Severity
0.0 / 10
High · CVSS 4.0
Exploit chance (EPSS)
0.31%
Chance of exploitation in the next 30 days. Higher than 23.52% of scored vulnerabilities.
Known exploited
No
Not in CISA's catalog
Weakness
CWE-918 Server-Side Request Forgery (SSRF)
Fix
None yet
No fixed version published

Description

A weakness has been identified in Casdoor 2.356.0. This vulnerability affects unknown code of the component Webhook URL Handler. Executing a manipulation can lead to server-side request forgery. The attack can be launched remotely. The vendor was contacted early about this disclosure but did not respond in any way.

Affected versions

Go

PackageVulnerableFixed in
github.com/casdoor/casdoor
<= 1.1000.0
No fix yet
github.com/casdoor/casdoor
all versions
No fix yet

How to fix

No fixed version has been published yet. Until one is, remove or replace the package, or turn off or isolate the affected feature. This page updates when a fix ships.

Severity breakdown

CVSS 4.0 0.0

CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N

Attack vector
Network
Attack complexity
Low
Attack requirements
None
Privileges required
High
User interaction
None
Confidentiality (vulnerable system)
Low
Integrity (vulnerable system)
Low
Availability (vulnerable system)
Low
Confidentiality (subsequent systems)
None
Integrity (subsequent systems)
None
Availability (subsequent systems)
None

CVSS 3.1 4.7

CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:L/A:L

Attack vector
Network
Attack complexity
Low
Privileges required
High
User interaction
None
Scope
Unchanged
Confidentiality
Low
Integrity
Low
Availability
Low

Weakness

CWE-918: Server-Side Request Forgery (SSRF)

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.

References

Timeline

  1. Published
  2. Last updated by the source
  3. Latest EPSS score
AdvisorySeverityWhy it's related
GHSA-mfvp-7p3v-x9mh
Casdoor SAML callback handler accepts any well-formed SAMLResponse sent to /api/acs without verifying that it corresponds to an AuthnRequest
Critical Also affects github.com/casdoor/casdoor
GHSA-339w-3hqm-9pjc
Casdoor doesn't verify that a JWT used for token exchange is still active
Critical Also affects github.com/casdoor/casdoor
GHSA-rgq2-93gj-ffxg
Casdoor doesn't enforce SAML assertion time bounds
High Also affects github.com/casdoor/casdoor
GHSA-c9w5-qp6m-m395
Casdoor: GetTokenExchangeToken bypass through lack of cross-organization JWT signature check
Critical Also affects github.com/casdoor/casdoor
GHSA-3w4h-g9f5-j84p
Casdoor does not validate the AudienceRestriction element in SAML assertions
Critical Also affects github.com/casdoor/casdoor
GHSA-gv4m-v8c8-hr3g
Casdoor allows users to bypass configured MFA requirements
Medium Also affects github.com/casdoor/casdoor
GHSA-fwgq-j9r9-qjgr
Casdoor has an authentication bypass
Critical Also affects github.com/casdoor/casdoor
GHSA-rmxx-v9rj-vpvg
Casdoor: Arbitrary file write possible through Local File System storage provider
Medium Also affects github.com/casdoor/casdoor
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