CVE-2026-49284 SimpleSAMLphp SP accepts a response from an unexpected IdP when unsigned `Response/InResponseTo` is combined with a signed assertion lacking `SubjectConfirmationData/InResponseTo`

SimpleSAMLphp versions before 1.18.6 contain an information disclosure vulnerability. Prior to 2.4.7 and 2.5.2, SimpleSAMLphp's SAML SP ACS path does not enforce the IdP selected for an SP-initiated login when unsigned Response/InResponseTo is combined with a signed assertion lacking...

CVE-2026-49284: Insufficient Verification of Data Authenticity

SimpleSAMLphp versions before 1.18.6 contain an information disclosure vulnerability. Prior to 2.4.7 and 2.5.2, SimpleSAMLphp's SAML SP ACS path does not enforce the IdP selected for an SP-initiated login when unsigned Response/InResponseTo is combined with a signed assertion lacking...

CVE-2020-35598

ACS Advanced Comment System 1.0 is affected by Directory Traversal via an advancedcomponentsystem/index.php?ACSpath=..%2f URI. NOTE: this might be the same as CVE-2009-4623...

PT-2020-17357

Name of the Vulnerable Software and Affected Versions ACS Advanced Comment System version 1.0 Description The issue allows Directory Traversal via the advanced component system/index.php API endpoint, specifically through the ACS path variable. This can be exploited by manipulating the ACS path...

PT-2019-9648

Name of the Vulnerable Software and Affected Versions Advanced Comment System version 1.0 Description The issue allows a remote unauthenticated attacker to potentially exploit a reflected cross-site scripting vulnerability via the ACS path variable. This could lead to the supply of malicious HTML...