CVEvulnerability

CVE-2025-26621

6.8 MEDIUM Published 2025-05-19 Modified 2026-06-17 Official page ↗
Status
Analyzed
Published
2025-05-19
Last modified
2026-06-17
Assigner
[email protected]
CVSS 3.1 ([email protected])
7.6 HIGH — CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:N/I:L/A:H
CVSS 3.1 ([email protected])
6.8 MEDIUM — CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:N/I:N/A:H
Weaknesses
CWE-1321, CWE-94

Description

OpenCTI is an open source platform for managing cyber threat intelligence knowledge and observables. Prior to version 6.5.2, any user with the capability manage customizations can edit webhook that will execute javascript code. This can be abused to cause a denial of service attack by prototype pollution, making the node js server running the OpenCTI frontend become unavailable. Version 6.5.2 fixes the issue.

Affected configurations

• citeum opencti (< 6.5.2)

Related

Weakness · CWE (2)

  • CWE-1321 Improperly Controlled Modification of Object Prototype Attributes weakness
  • CWE-94 Improper Control of Generation of Code weakness

References