The affected function did not properly enforce MISP’s usual protection against forged requests. Because of this, an attacker could create a malicious webpage that silently sends a request to MISP when visited by an authenticated user.
If successful, the attacker could change details of an attribute, such as its value, type, category, comment, distribution settings, or related timestamps.
The attack requires the victim to already be logged in to MISP and to visit an attacker-controlled page.
The main impact is unauthorized modification of threat-intelligence data, which could lead to incorrect indicators, wrong classifications, or altered sharing settings and reduce confidence in the accuracy of the information stored in MISP.
Version affected: <2.5.47
Analysis and contextual insights are available on OpenCVE Cloud.
Vendor Solution
The editField action is removed from the Security component's unlockedActions list and added to the _csrfTokenHeaderOnly array. This enforces CSRF token validation (accepted either in the X-CSRF-Token header or in the request body) while dropping only the field-hash check, which the existing AJAX callers (Overmind index and legacy inline forms) cannot satisfy. Legitimate callers are unaffected because they already transmit a valid CSRF token.
Tracking
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| Link | Providers |
|---|---|
| https://github.com/MISP/MISP/commit/dfbae33f9 |
|
Mon, 21 Sep 2026 15:30:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Metrics |
ssvc
|
Mon, 21 Sep 2026 14:00:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Description | MISP has a security issue that could let an attacker change threat-intelligence data through a logged-in user’s browser without that user knowingly approving the change. The affected function did not properly enforce MISP’s usual protection against forged requests. Because of this, an attacker could create a malicious webpage that silently sends a request to MISP when visited by an authenticated user. If successful, the attacker could change details of an attribute, such as its value, type, category, comment, distribution settings, or related timestamps. The attack requires the victim to already be logged in to MISP and to visit an attacker-controlled page. The main impact is unauthorized modification of threat-intelligence data, which could lead to incorrect indicators, wrong classifications, or altered sharing settings and reduce confidence in the accuracy of the information stored in MISP. Version affected: <2.5.47 | |
| Title | MISP CSRF vulnerability allows unauthorized attribute modification | |
| Weaknesses | CWE-352 | |
| References |
| |
| Metrics |
cvssV4_0
|
Subscriptions
No data.
Status: PUBLISHED
Assigner: CIRCL
Published:
Updated: 2026-09-21T14:48:16.245Z
Reserved: 2026-09-21T13:50:44.676Z
Link: CVE-2026-94404
Updated: 2026-09-21T14:39:16.731Z
Status : Deferred
Published: 2026-09-21T14:17:31.203
Modified: 2026-09-21T15:17:40.073
Link: CVE-2026-94404
No data.
OpenCVE Enrichment
No data.
