CVE Feed

    Dashboard / CVE / CVE-2024-9517

    CVE-2024-9517

    The refresh token grant type in WSO2 products fails to re-validate account status before issuing new access tokens. This weakness allows an attacker to obtain valid access tokens for user accounts even after they have been blocked by the user store, bypassing account lockout mechanisms. This vulnerability can lead to unauthorized access to user accounts and their associated resources. Attackers can leverage this to perform actions on behalf of blocked users, potentially leading to privilege escalation or data exfiltration depending on the permissions of the compromised account.

    Published:Nov 2, 2026
    Last Modified:Nov 2, 2026
    EPS:Nov 2, 2026
    EPSS Score:
    CVSS Score:4.9

    Affected Products

    Vendor
    Wso2
    Product
    Api Control Plane
    Vendor
    Wso2
    Product
    Api Manager
    Vendor
    Wso2
    Product
    Identity Server
    Vendor
    Wso2
    Product
    Wso2 Api Control Plane
    Vendor
    Wso2
    Product
    Wso2 Api Manager
    Vendor
    Wso2
    Product
    Wso2 Carbon Oauth
    Vendor
    Wso2
    Product
    Wso2 Identity Server
    Vendor
    Wso2
    Product
    Wso2 Identity Server As Key Manager
    Vendor
    Wso2
    Product
    Wso2 Open Banking Am
    Vendor
    Wso2
    Product
    Wso2 Open Banking Iam
    Vendor
    Wso2
    Product
    Wso2 Traffic Manager
    Vendor
    Wso2
    Product
    Wso2 Universal Gateway

    Exploits

    No exploit reference

    Common Attack Pattern Enumeration and Classification (CAPEC)

    No CAPEC recorded yet

    Related CVEs

    CVE-2026-4052 (CVSS 9.8) — This issue only impacts deployments where WSO2 Identity Server is configured as a Resident Key Manager with da…
    CVE-2025-5769 (CVSS 6.1) — The authentication endpoint does not properly encode user-supplied input before rendering it within the web pa…
    CVE-2025-1397 (CVSS 4.8) — When utilizing JWT Bearer or SAML2 Bearer grant types, the system fails to validate the status of the Identity…
    CVE-2026-2613 (CVSS 8.7) — The Admin REST API accepts user-supplied input without adequately sanitizing it, allowing it to be included in…
    CVE-2026-18800 (CVSS 4.4) — When an Event Publisher output adapter is configured with properties that are irrelevant to its function, the …
    CVE-2025-11969 (CVSS 9.4) — The System REST APIs do not correctly enforce access control mechanisms, allowing users with lower privilege r…
    CVE-2026-3583 (CVSS 3.1) — When the `allowed_scopes` configuration is enabled, the OAuth2 token introspection mechanism does not immediat…
    CVE-2026-11854 (CVSS 6.1) — The authentication endpoint generates an error message that includes reflected data directly from the request …
    CVE-2026-4103 (CVSS 6.4) — Insufficient HTML sanitization in the Publisher Portal and Developer Portal allows untrusted user input to be …
    CVE-2026-3096 (CVSS 4.7) — The product's web portals allow external links to be opened in a new browser tab. In certain configurations, t…

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High