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OpenAdvisories

Vendor

Apereo

18 known vulnerabilities.

Apereo at a glance

Last 12 months
9
Critical · all time
3
Exploited · all time
0
Public exploit · all time
0
New vulnerabilities per month · last 12 months
0 5 10 December 2025: 0 vulnerabilities Dec 2025 January 2026: 0 vulnerabilities February 2026: 0 vulnerabilities March 2026: 0 vulnerabilities Mar April 2026: 0 vulnerabilities May 2026: 0 vulnerabilities June 2026: 0 vulnerabilities Jun July 2026: 2 vulnerabilities, 1 critical August 2026: 0 vulnerabilities September 2026: 1 vulnerability Sep October 2026: 6 vulnerabilities, 1 critical November 2026: 0 vulnerabilities
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MonthVulnerabilitiesCritical
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18 results · Feed

  • Medium 4.8

    Stored XSS in pre-login notice via reachable legacy logon route

    In openEQUELLA before 2026.2, the pre-login notice is stored as HTML and rendered on the legacy logon page without encoding or sanitisation. A user holding the EDIT_SYSTEM_SETTINGS permission can set a notice containing an arbitrary script (PUT /api/preloginn…

  • Medium 6.9

    Unauthenticated IDOR Enables Disclosure of Other Users’ last-known details

    In openEQUELLA before 2026.1, the GET /api/userquery/userinfobackup endpoint performs no authentication or authorisation check. An unauthenticated attacker who supplies another user's uniqueId can retrieve that user's stored personal details (username, first …

  • High 7.1

    XML External Entity (XXE) Injection in Metadata Field Allows Arbitrary File Read

    In openEQUELLA before 2026.1, the XML parser used for item metadata does not disable external entity resolution. A user permitted to create items (CREATE_ITEM) can submit crafted XML to POST /api/item and cause the server to read arbitrary files accessible to…

  • Medium 6.1

    XML External Entity (XXE) Vulnerability in SOAP Interface Allows External Entity Expansion

    In openEQUELLA before 2026.1, the SOAP API parses XML supplied in the stopEdit operation with a parser that resolves external entities. This allows an attacker to read arbitrary files accessible to the openEQUELLA service or cause the server to issue requests…

  • Critical 9.4

    Unrestricted Command Execution via system.execute

    In openEQUELLA before 2026.1, the system.execute() function available to the scripting engine runs supplied operating system commands without validation or an allow-list of permitted executables. A user able to create or edit scripts can use it to execute arb…

  • Medium 4.8

    Stored XSS via Pre-Login Notice Image Upload Serves Attacker HTML from Application Origin

    In openEQUELLA before 2026.1, the pre-login notice image upload endpoint (PUT /api/preloginnotice/image/{name}) does not validate the type of uploaded files and serves them with a Content-Type derived from the supplied filename. A user holding the EDIT_SYSTEM…

  • High 8.8

    openEQUELLA < 2026.1.0 Authenticated RCE via Java Deserialization in HTTP Invoker

    openEQUELLA before 2026.1.0 contains an authenticated remote code execution vulnerability that allows any authenticated non-guest user to execute arbitrary code by exploiting Java deserialization in the HTTP invoker endpoint at /invoker/*. Attackers can bypas…

  • High 7.4

    Improper Validation of Certificate in CAS Client

    Apereo CAS Client accepts any CA-trusted certificate for any hostname, provided the URL the client is calling matches the configured allowlist or regex. An attacker with a MITM position (DNS poisoning, rogue Wi-Fi, malicious proxy, etc.) can provide any CA-si…

  • Critical 9.1

    Apereo CAS 7.3.0 < 8.0.0-RC6 - AES-GCM Nonce Reuse Information Disclosure

    Apereo CAS 7.3.0 before 8.0.0-RC6 contains a cryptographic vulnerability that allows remote unauthenticated attackers to recover plaintext conversation state by exploiting AES-GCM initialization vector reuse across the server lifetime. Attackers can collect m…

  • Medium 4.3

    Apereo CAS CasConfigurationMetadataServerController.java redos

    A vulnerability was found in Apereo CAS 5.2.6. It has been declared as problematic. This vulnerability affects unknown code of the file cas-5.2.6\core\cas-server-core-configuration-metadata-repository\src\main\java\org\apereo\cas\metadata\rest\CasConfiguratio…

  • Low 2.7

    Apereo CAS ResponseEntity redos

    A vulnerability was found in Apereo CAS 5.2.6. It has been classified as problematic. This affects the function ResponseEntity of the file cas-5.2.6\webapp-mgmt\cas-management-webapp-support\src\main\java\org\apereo\cas\mgmt\services\web\ManageRegisteredServi…

  • Medium 5.0

    Apereo CAS Groovy Code RegisteredServiceSimpleFormController.java saveService code injection

    A vulnerability was found in Apereo CAS 5.2.6 and classified as critical. Affected by this issue is the function saveService of the file cas-5.2.6\webapp-mgmt\cas-management-webapp-support\src\main\java\org\apereo\cas\mgmt\services\web\RegisteredServiceSimple…

  • Medium 6.3

    Apereo CAS 2FA login improper authentication

    A vulnerability was found in Apereo CAS 6.6. It has been classified as critical. This affects an unknown part of the file /login?service of the component 2FA. The manipulation leads to improper authentication. It is possible to initiate the attack remotely. T…

  • Low 3.7

    Apereo CAS login session expiration

    A vulnerability was found in Apereo CAS 6.6 and classified as problematic. Affected by this issue is some unknown functionality of the file /login?service. The manipulation leads to session expiration. The attack may be launched remotely. The complexity of an…

  • Medium 4.3

    Apereo CAS login redirect

    A vulnerability has been found in Apereo CAS 6.6 and classified as problematic. Affected by this vulnerability is an unknown functionality of the file /login. The manipulation of the argument redirect_uri leads to open redirect. The attack can be launched rem…

  • Critical 9.8

    MFA bypass in Apereo CAS

    Improper Authentication vulnerability in Apereo CAS in jakarta.servlet.http.HttpServletRequest.getRemoteAddr method allows Multi-Factor Authentication bypass.This issue affects CAS: through 7.0.0-RC7. It is unknown whether in new versions the issue will be fi…

  • Medium 4.0

    LDAP password leak in Apereo CAS - GHSL-2023-009

    Apereo CAS is an open source multilingual single sign-on solution for the web. Apereo CAS can be configured to use authentication based on client X509 certificates. These certificates can be provided via TLS handshake or a special HTTP header, such as “ssl_cl…

  • High 8.0

    Service Hostname Discovery Exploitation in phpCAS

    phpCAS is an authentication library that allows PHP applications to easily authenticate users via a Central Authentication Service (CAS) server. The phpCAS library uses HTTP headers to determine the service URL used to validate tickets. This allows an attacke…