Vulnerability Report

CVE-2026-30691

Title: @cyntler/react-doc-viewer Cross-Site Scripting (XSS)

XSS

Proof Of Concept

PoC Available for CVE-2026-30691

CWE Category NVD-CWE-noinfo

Published Date May 20, 2026

Modified Date May 21, 2026

Exploit Status Available

Score 6.1 CVSS v

Exploit Probability (EPSS)

0.30%

Vulnerability Summary

CVE-2026-30691: Cross-Site Scripting (XSS) vulnerability in @cyntler/react-doc-viewer v1.17.1 allows remote attackers to execute arbitrary JavaScript via a crafted .txt file. The TXTRenderer component fails to sanitize file content and explicitly casts raw data as a ReactNode

Impacted Vendors

Analysis in Progress...

Reference Links

https://github.com/cyntler/react-doc-viewer/issues/317 https://github.com/walidriouah/CVE-2026-30691

CVSS v3.1

Source Entity 134c704f-9b21-4f2e-91b3-4a467353bcc0

Severity MEDIUM

6.1

Attack Vector

NETWORK

Complexity

LOW

Privileges

N/A

Interaction

REQUIRED

Confidentiality

N/A

Integrity

N/A

Availability

N/A

Scope

CHANGED

RAW VECTOR CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Associated Attack Patterns (CAPEC)

Total: Patterns

CVE-2026-30691 Exploits & PoCs (Proof Of Concept)

GitHub https://github.com/walidriouah/CVE-2026-30691

View Code

May 21, 2026 MODIFIED

Vulnerability data updated via NVD.

May 20, 2026 MODIFIED

Vulnerability data updated via NVD.

May 20, 2026 MODIFIED

Vulnerability data updated via NVD.

Attack Vector Matrix

Access Vector NETWORK

Complexity LOW

Privileges N/A

Interaction REQUIRED

CVSS Vector String


                                    CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Affected Stack

No specific products linked.