CVE-2026-103662

Published: Ott 01, 2026 Last Modified: Ott 01, 2026
ExploitDB:
Other exploit source:
Google Dorks:
MEDIUM 5,1
Source: 5a6e4751-2f3f-4070-9419-94fb35b644e8
Attack Vector: network
Attack Complexity: low
Privileges Required: none
User Interaction: active
Confidentiality: N/A
Integrity: N/A
Availability: N/A

Description

AI Translation Available

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 administrator to visit a crafted URL containing a malicious tag name parameter can execute arbitrary JavaScript in the administrator's browser session.

Preconditions:

- The target must be running a MISP instance with the legacy taxonomy tag confirmation views enabled.

- The victim must be an authenticated site administrator.

- The victim must navigate to the attacker-crafted URL (e.g., via a phishing link).

Security impact:

- Execution of arbitrary client-side script in the context of the administrator's browser.

- Potential theft of session tokens, CSRF tokens, or other sensitive data accessible from the page.

- Potential for performing privileged actions on behalf of the administrator within the MISP interface.

Affected versions: <2.5.48.

79

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

Stable
Abstraction: Base Structure: Simple
Common Consequences
Security Scopes Affected:
Access Control Confidentiality Integrity Availability
Potential Impacts:
Bypass Protection Mechanism Read Application Data Execute Unauthorized Code Or Commands
Applicable Platforms
Technologies: AI/ML, Web Based, Web Server
Likelihood of Exploit: High
View CWE Details
https://github.com/MISP/MISP/commit/9619083c8
https://github.com/MISP/MISP/commit/9619083c8