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CVE-2026-41670

Admidio is an open-source user management solution. Prior to version 5.0.9, the SAML IdP implementation in Admidio's SSO module uses the AssertionConsumerServiceURL value directly from incoming SAML AuthnRequest messages as the destination for the SAML response, without validating it against the registered ACS URL (smc_acs_url) stored in the database for the corresponding service provider client. An attacker who knows the Entity ID of a registered SP client can craft a SAML AuthnRequest with an
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:7524be896b26ecd30aafeb76ec4fbb620c9efd2b6807380413ff1976b602deb3
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
1

Preserved source conflicts

No provider value was silently selected as the winner.

cwe · 2 assertions

{"cweId":"CWE-20","description":"CWE-20: Improper Input Validation","lang":"en","type":"CWE"}

  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:c1b4762be5f7c6f548f9ebedd0149f44727932e7e59b10239c3977e7ffaf8eeb · sha256:acdb02990ba85555… · /containers/cna/problemTypes/0/descriptions/0

{"cweId":"CWE-601","description":"CWE-601: URL Redirection to Untrusted Site ('Open Redirect')","lang":"en","type":"CWE"}

  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:c1b4762be5f7c6f548f9ebedd0149f44727932e7e59b10239c3977e7ffaf8eeb · sha256:acdb02990ba85555… · /containers/cna/problemTypes/1/descriptions/0

Affected products and versions

1 source assertion
{"product":"admidio","vendor":"Admidio","versions":[{"status":"affected","version":"< 5.0.9"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:c1b4762be5f7c6f548f9ebedd0149f44727932e7e59b10239c3977e7ffaf8eeb · sha256:acdb02990ba85555… · /containers/cna/affected/0

Provider-owned CVSS observations

1 source assertion
{"metric":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"NONE","baseScore":8.2,"baseSeverity":"HIGH","confidentialityImpact":"HIGH","integrityImpact":"LOW","privilegesRequired":"NONE","scope":"CHANGED","userInteraction":"REQUIRED","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:L/A:N","version":"3.1"},"metric_type":"cvssV3_1"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:c1b4762be5f7c6f548f9ebedd0149f44727932e7e59b10239c3977e7ffaf8eeb · sha256:acdb02990ba85555… · /containers/cna/metrics/0/cvssV3_1

CWE assertions

2 source assertions
{"cweId":"CWE-20","description":"CWE-20: Improper Input Validation","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:c1b4762be5f7c6f548f9ebedd0149f44727932e7e59b10239c3977e7ffaf8eeb · sha256:acdb02990ba85555… · /containers/cna/problemTypes/0/descriptions/0
{"cweId":"CWE-601","description":"CWE-601: URL Redirection to Untrusted Site ('Open Redirect')","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:c1b4762be5f7c6f548f9ebedd0149f44727932e7e59b10239c3977e7ffaf8eeb · sha256:acdb02990ba85555… · /containers/cna/problemTypes/1/descriptions/0

Source references

3 source assertions
{"name":"https://github.com/Admidio/admidio/releases/tag/v5.0.9","tags":["x_refsource_MISC"],"url":"https://github.com/Admidio/admidio/releases/tag/v5.0.9"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:c1b4762be5f7c6f548f9ebedd0149f44727932e7e59b10239c3977e7ffaf8eeb · sha256:acdb02990ba85555… · /containers/cna/references/1
{"tags":["exploit"],"url":"https://github.com/Admidio/admidio/security/advisories/GHSA-p9w9-87c8-m235"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:c1b4762be5f7c6f548f9ebedd0149f44727932e7e59b10239c3977e7ffaf8eeb · sha256:acdb02990ba85555… · /containers/adp/0/references/0
{"name":"https://github.com/Admidio/admidio/security/advisories/GHSA-p9w9-87c8-m235","tags":["x_refsource_CONFIRM"],"url":"https://github.com/Admidio/admidio/security/advisories/GHSA-p9w9-87c8-m235"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:c1b4762be5f7c6f548f9ebedd0149f44727932e7e59b10239c3977e7ffaf8eeb · sha256:acdb02990ba85555… · /containers/cna/references/0

Attribution and limitations

  • CVE Program CVEList V5: Reproduce the MITRE copyright designation and CVE license in copies. Source →

Provider severity values are preserved separately. Baitaphish does not convert them into a risk rating, infer affected products, or treat EPSS as observed exploitation.

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