CVE-2026-18110

Concrete CMS 9 (versions 9.0.0 through 9.5.2) contains a missing authorization check on the user selector autocomplete endpoint (/ccm/system/user/autocomplete). The endpoint validates only a CSRF-style token bound to display options rather than caller identity, and that token is issued to anonymo...

EUVD-2026-78830

Concrete CMS 9 9.0.0 through 9.5.2 does not perform an authorization check on the user selector autocomplete endpoint /ccm/system/user/autocomplete, which backs the "Preview as User" panel and other user-selector components. The endpoint validates only a CSRF-style access token that is bound to t...

CVE-2026-91981

Vikunja versions before 2.6.0 fail to properly validate link-share tokens in the v2 API user search endpoints. Attackers with a read-only share link can enumerate project users via the projects endpoint and confirm arbitrary usernames exist via the global search endpoint...

CVE-2026-91981 Vikunja before 2.6.0 User Enumeration via v2 API

Vikunja versions before 2.6.0 fail to properly validate link-share tokens in the v2 API user search endpoints. Attackers with a read-only share link can enumerate project users via the projects endpoint and confirm arbitrary usernames exist via the global search endpoint...

CVE-2026-91981 Vikunja before 2.6.0 User Enumeration via v2 API

Vikunja versions before 2.6.0 fail to properly validate link-share tokens in the v2 API user search endpoints. Attackers with a read-only share link can enumerate project users via the projects endpoint and confirm arbitrary usernames exist via the global search endpoint...

CVE-2026-91981

Vikunja , a self-hosted task management application, is affected by a user enumeration vulnerability in versions before 2.6.0 . The root cause is improper validation of link-share tokens in the v2 API user search endpoints. An attacker holding a read-only share link can enumerate project members ...

EUVD-2026-78652

Vikunja versions before 2.6.0 fail to properly validate link-share tokens in the v2 API user search endpoints. Attackers with a read-only share link can enumerate project users via the projects endpoint and confirm arbitrary usernames exist via the global search endpoint...

CVE-2026-91981 Vikunja before 2.6.0 User Enumeration via v2 API

Vikunja versions before 2.6.0 fail to properly validate link-share tokens in the v2 API user search endpoints. Attackers with a read-only share link can enumerate project users via the projects endpoint and confirm arbitrary usernames exist via the global search endpoint...

CVE-2026-41573

Open Access Management OpenAM is an access management solution. Prior to 16.1.1, IdentityResourceV1.queryCollection passes the queryId parameter from /json/realm/users to CrestQuery with escapeQueryId disabled, bypassing protection added for CVE-2021-29156. The unescaped value reaches...

CVE-2025-5802

The self-registration flow accepts user-supplied input for usernames without adequately preventing the disclosure of username existence. When a user attempts to register with an existing username, the system responds with an error message that explicitly indicates the username is already in use...

CVE-2025-13166

The SMS OTP flow fails to adequately handle error messages, allowing an attacker to infer the existence of registered user accounts based on the responses received during the OTP initiation process. This weakness can be exploited by an attacker to discover valid usernames within the system. The...

CVE-2026-41573

OpenAM prior to 16.1.1 is vulnerable to LDAP injection via the _queryId parameter in CREST REST API user query endpoints (/json/{realm}/users). The root cause is that IdentityResourceV1.queryCollection() passes _queryId to CrestQuery with escapeQueryId explicitly set to false , bypassing the esca...

CVE-2026-41573 OpenAM LDAP Injection via `_queryId` Parameter

Open Access Management OpenAM is an access management solution. Prior to 16.1.1, IdentityResourceV1.queryCollection passes the queryId parameter from /json/realm/users to CrestQuery with escapeQueryId disabled, bypassing protection added for CVE-2021-29156. The unescaped value reaches...

EUVD-2026-78366

Open Access Management OpenAM is an access management solution. Prior to 16.1.1, IdentityResourceV1.queryCollection passes the queryId parameter from /json/realm/users to CrestQuery with escapeQueryId disabled, bypassing protection added for CVE-2021-29156. The unescaped value reaches...

CVE-2026-41573 OpenAM LDAP Injection via `_queryId` Parameter

Open Access Management OpenAM is an access management solution. Prior to 16.1.1, IdentityResourceV1.queryCollection passes the queryId parameter from /json/realm/users to CrestQuery with escapeQueryId disabled, bypassing protection added for CVE-2021-29156. The unescaped value reaches...

CVE-2026-41573 OpenAM LDAP Injection via `_queryId` Parameter

Open Access Management OpenAM is an access management solution. Prior to 16.1.1, IdentityResourceV1.queryCollection passes the queryId parameter from /json/realm/users to CrestQuery with escapeQueryId disabled, bypassing protection added for CVE-2021-29156. The unescaped value reaches...

CVE-2025-13166

WSO2 Identity Server is affected by a username enumeration vulnerability in its SMS OTP flow . The root cause is that the OTP initiation process returns differing error messages depending on whether the queried account exists and has a mobile number configured, allowing an attacker to infer valid...

EUVD-2025-210911

The SMS OTP flow fails to adequately handle error messages, allowing an attacker to infer the existence of registered user accounts based on the responses received during the OTP initiation process. This weakness can be exploited by an attacker to discover valid usernames within the system. The...

CVE-2026-18110: Missing Authorization

Concrete CMS 9 9.0.0 through 9.5.2 does not perform an authorization check on the user selector autocomplete endpoint /ccm/system/user/autocomplete, which backs the "Preview as User" panel and other user-selector components. The endpoint validates only a CSRF-style access token that is bound to t...

CVE-2026-91981: Exposure of Sensitive Information to an Unauthorized Actor

Vikunja versions before 2.6.0 fail to properly validate link-share tokens in the v2 API user search endpoints. Attackers with a read-only share link can enumerate project users via the projects endpoint and confirm arbitrary usernames exist via the global search endpoint...