PT-2026-104396

MISP contains a cross-site scripting XSS vulnerability in the remote event preview page. When a linked remote MISP server is configured, the event preview renders tag identifiers inside an inline JavaScript onclick attribute. The tag ID value was HTML-escaped but not sanitized for the JavaScript...

PT-2026-104398

Name of the Vulnerable Software and Affected Versions MISP versions prior to commit 2ffa97f05 Description An authorization bypass exists in the related events listing functionality. When a user requests a list of events correlated to a specific event, the system retrieves metadata directly from t...

PT-2026-104361

MISP contains a cross-site scripting XSS vulnerability in the TAXII object viewer. When displaying a remote TAXII object, the JSON content of string properties was rendered directly into an HTML pre block without HTML-encoding. An attacker who can control or influence the content of a TAXII objec...

PT-2026-104400

MISP contains an improper access control vulnerability in its attribute search and paginated attribute view endpoints. When a user queries for soft-deleted attributes e.g., via the deleted-attributes search or the paginated attribute listing, the application returned soft-deleted attributes...

PT-2026-104360

MISP contains a cross-site scripting XSS vulnerability in the ID Translator feature. When a user views the ID Translator page, the application queries linked remote MISP servers for corresponding event identifiers. The event ID returned by the remote server was rendered in the HTML output without...

PT-2026-104397

MISP contains an improper input validation vulnerability in the decaying model import functionality. The import endpoint was intended to create a new decaying model belonging exclusively to the importing user's organisation, with the default flag forced to off. However, the application stripped...

CVE-2026-103858

MISP contains an incomplete authorization check in the discussion posting functionality. When a user submits a post to a thread or replies to an existing post, the application only verified whether the target thread was restricted to a single organization org-only distribution. It did not enforce...

CVE-2026-103858 MISP Incomplete Thread Authorization Allows Unauthorized Read and Post Access to Discussions

MISP contains an incomplete authorization check in the discussion posting functionality. When a user submits a post to a thread or replies to an existing post, the application only verified whether the target thread was restricted to a single organization org-only distribution. It did not enforce...

CVE-2026-103858 MISP Incomplete Thread Authorization Allows Unauthorized Read and Post Access to Discussions

MISP contains an incomplete authorization check in the discussion posting functionality. When a user submits a post to a thread or replies to an existing post, the application only verified whether the target thread was restricted to a single organization org-only distribution. It did not enforce...

CVE-2026-103858 MISP Incomplete Thread Authorization Allows Unauthorized Read and Post Access to Discussions

MISP contains an incomplete authorization check in the discussion posting functionality. When a user submits a post to a thread or replies to an existing post, the application only verified whether the target thread was restricted to a single organization org-only distribution. It did not enforce...

EUVD-2026-90770

MISP contains an incomplete authorization check in the discussion posting functionality. When a user submits a post to a thread or replies to an existing post, the application only verified whether the target thread was restricted to a single organization org-only distribution. It did not enforce...

CVE-2026-103858

The MISP application (versions earlier than 2.5.48 ) is vulnerable to an incomplete authorization check within its discussion posting functionality. The system fails to properly enforce the full thread access control list, specifically neglecting to verify sharing-group membership and event-level...

CVE-2026-103664

MISP contains a reflected cross-site scripting XSS vulnerability in the analyst data notes panel. The seed path parameter, supplied by the user via the URL, was passed directly into inline JavaScript within the rendered HTML response without any sanitization or type enforcement. An attacker who c...

CVE-2026-103662

MISP contains a reflected cross-site scripting XSS vulnerability in the legacy taxonomy tag management confirmation forms add tag and disable tag. The affected forms echoed a user-supplied tag name value from the request unescaped into the rendered HTML output. An attacker who can induce a site...

CVE-2026-103659

MISP contains an authorization bypass in the event flattening feature. When a user requests an event with the flatten option enabled, the application removes the Object containment from the query and returns object attributes as top-level event attributes. In doing so, the object-level distributi...

CVE-2026-103655

MISP contains a vulnerability in its two-factor authentication TOTP verification process that permits a valid one-time code to be accepted more than once within its time-based validity window. The issue exists in the user login flow where a TOTP code is verified as a second authentication factor...

CVE-2026-103664 MISP Reflected Cross-Site Scripting via Unsanitized Analyst Data Seed Parameter

MISP contains a reflected cross-site scripting XSS vulnerability in the analyst data notes panel. The seed path parameter, supplied by the user via the URL, was passed directly into inline JavaScript within the rendered HTML response without any sanitization or type enforcement. An attacker who c...

CVE-2026-103664 MISP Reflected Cross-Site Scripting via Unsanitized Analyst Data Seed Parameter

MISP contains a reflected cross-site scripting XSS vulnerability in the analyst data notes panel. The seed path parameter, supplied by the user via the URL, was passed directly into inline JavaScript within the rendered HTML response without any sanitization or type enforcement. An attacker who c...

EUVD-2026-90578

MISP contains a reflected cross-site scripting XSS vulnerability in the analyst data notes panel. The seed path parameter, supplied by the user via the URL, was passed directly into inline JavaScript within the rendered HTML response without any sanitization or type enforcement. An attacker who c...

CVE-2026-103664 MISP Reflected Cross-Site Scripting via Unsanitized Analyst Data Seed Parameter

MISP contains a reflected cross-site scripting XSS vulnerability in the analyst data notes panel. The seed path parameter, supplied by the user via the URL, was passed directly into inline JavaScript within the rendered HTML response without any sanitization or type enforcement. An attacker who c...