GHSA-CGVV-3455-824J Moodle Session Fixation allows unauthenticated users to hijack sessions via sesskey parameter

A session fixation vulnerability in Moodle 3.x through 3.11.18 allows unauthenticated attackers to hijack user sessions via the sesskey parameter. The sesskey can be obtained without authentication and reused within the OAuth2 login flow, resulting in the victim's session being linked to the...

CVE-2025-53021

A session fixation vulnerability in Moodle 3.x through 3.11.18 allows unauthenticated attackers to hijack user sessions via the sesskey parameter. The sesskey can be obtained without authentication and reused within the OAuth2 login flow, resulting in the victim's session being linked to the...

UBUNTU-CVE-2025-53021

A session fixation vulnerability in Moodle 3.x through 3.11.18 allows unauthenticated attackers to hijack user sessions via the sesskey parameter. The sesskey can be obtained without authentication and reused within the OAuth2 login flow, resulting in the victim's session being linked to the...

CVE-2025-53021

A session fixation vulnerability in Moodle 3.x through 3.11.18 allows unauthenticated attackers to hijack user sessions via the sesskey parameter. The sesskey can be obtained without authentication and reused within the OAuth2 login flow, resulting in the victim's session being linked to the...

CVE-2025-53021

A session fixation vulnerability in Moodle 3.x through 3.11.18 allows unauthenticated attackers to hijack user sessions via the sesskey parameter. The sesskey can be obtained without authentication and reused within the OAuth2 login flow, resulting in the victim's session being linked to the...

CVE-2025-53021

A session fixation vulnerability in Moodle 3.x through 3.11.18 allows unauthenticated attackers to hijack user sessions via the sesskey parameter. The sesskey can be obtained without authentication and reused within the OAuth2 login flow, resulting in the victim's session being linked to the...

CVE-2025-53021

CVE-2025-53021 describes a session fixation flaw in Moodle 3.x up to 3.11.18. The vulnerability allows unauthenticated attackers to hijack a victim’s session by abusing the sesskey parameter within the OAuth2 login flow, causing the victim’s account to be linked to the attacker. Root cause identi...

SUSE-SU-2025:02040-1 Security update for ignition

This update for ignition fixes the following issues: - CVE-2025-22868: golang.org/x/oauth2/jws: Unexpected memory consumption during token parsing in golang.org/x/oauth2 bsc1239192...

CVE-2025-21085

PingFederate OAuth2 grant duplication in PostgreSQL persistent storage allows OAuth2 requests to use excessive memory utilization...

TencentOS Server 4: lemonldap-ng (TSSA-2024:0991)

The version of Tencent Linux installed on the remote TencentOS Server 4 host is prior to tested version. It is, therefore, affected by multiple vulnerabilities as referenced in the TSSA-2024:0991 advisory. Package updates are available for TencentOS Server 4 that fix the following vulnerabilities...

CVE-2025-21085

PingFederate OAuth2 grant duplication in PostgreSQL persistent storage allows OAuth2 requests to use excessive memory utilization...

CVE-2025-21085 PingFederate OAuth Grant attribute duplication may use excessive memory

PingFederate OAuth2 grant duplication in PostgreSQL persistent storage allows OAuth2 requests to use excessive memory utilization...

CVE-2025-21085

PingFederate CVE-2025-21085 describes a grant attribute duplication issue in the PostgreSQL persistence store that can cause excessive memory utilization for OAuth2 requests. The affected product is PingFederate; the root cause is duplication in the OAuth2 grant storage within PostgreSQL, leading...

PT-2025-25497 · Ping Identity · Pingfederate

Name of the Vulnerable Software and Affected Versions: PingFederate affected versions not specified Description: The issue concerns PingFederate OAuth2 grant duplication in PostgreSQL persistent storage, allowing OAuth2 requests to use excessive memory utilization. Recommendations: At the moment,...

BIT-MOODLE-2024-45690 Moodle: idor when deleting oauth2 linked accounts

A flaw was found in Moodle. Additional checks were required to ensure users can only delete their OAuth2-linked accounts...

Improper Certificate Validation

Overview redshift-connector is a Redshift interface library Affected versions of this package are vulnerable to Improper Certificate Validation when using the BrowserAzureOAuth2CredentialsProvider plugin. An attacker can intercept token exchange communication and retrieve an access token by...

CVE-2024-52519

Nextcloud Server is a self hosted personal cloud system. The OAuth2 client secrets were stored in a recoverable way, so that an attacker that got access to a backup of the database and the Nextcloud config file, would be able to decrypt them. It is recommended that the Nextcloud Server is upgrade...

CVE-2024-52289

authentik is an open-source identity provider. Redirect URIs in the OAuth2 provider in authentik are checked by RegEx comparison. When no Redirect URIs are configured in a provider, authentik will automatically use the first redirecturi value received as an allowed redirect URI, without escaping...

CVE-2024-28239

Directus is a real-time API and App dashboard for managing SQL database content. The authentication API has a redirect parameter that can be exploited as an open redirect vulnerability as the user tries to log in via the API URL. There's a redirect that is done after successful login via the Auth...

CVE-2024-4536

In Eclipse Dataspace Components from version 0.2.1 to 0.6.2, in the EDC Connector component https://github.com/eclipse-edc/Connector , an attacker might obtain OAuth2 client secrets from the vault. In Eclipse Dataspace Components from version 0.2.1 to 0.6.2, we have identified a security...