PT-2026-5484 · Opencti+2 · Opencti+2

Published 2026-01-30 · Updated 2026-01-31 · CVE-2020-37044

Positive Technologies (AI Summary)

CVSS v3.1

6.1

Medium

Base vector

AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Name of the Vulnerable Software and Affected Versions OpenCTI version 3.3.1

Description OpenCTI is susceptible to a reflected cross-site scripting (XSS) attack through the /graphql API endpoint. An attacker can inject malicious JavaScript code by sending a specially crafted GET request with a payload in the query string, which then executes in the victim's browser. For example, a request to /graphql?'"--></style></scRipt><scRipt>alert('Raif Berkay')</scRipt> will trigger an alert. The issue was discovered on Linux Mint and Windows 10. The vulnerable parameter is the query string within the GET request to the /graphql endpoint.

Recommendations OpenCTI version 3.3.1 should be updated to a newer version that addresses this issue. As a temporary workaround, consider carefully validating and sanitizing all input received through the /graphql endpoint to prevent the injection of malicious scripts.

Exploit

Fix

XSS

Weakness Enumeration

CWE-79

Related Identifiers

CVE-2020-37044

PYSEC-2026-115

Affected Products

Linuxmint

Opencti

Windows 10

References · 8

• 🔥 https://exploit-db.com/exploits/48595 · Exploit
• https://nvd.nist.gov/vuln/detail/CVE-2020-37044 · Security Note
• https://osv.dev/vulnerability/CVE-2020-37044 · Vendor Advisory
• https://osv.dev/vulnerability/PYSEC-2026-115 · Vendor Advisory
• https://github.com/OpenCTI-Platform/opencti · Note
• https://vulncheck.com/advisories/opencti-cross-site-scripting · Note
• https://t.me/CVEtracker/43361 · Telegram Post
• https://opencti.io · Note