CVE-2025-39381 HIGH

CVE-2025-39381: WordPress KiotViet Sync plugin <= 1.8.4 - CSRF to Stored XSS vulnerability

Vendor Kiotviet
Product KiotViet Sync
Weakness CWE-352 · CSRF
Published April 24, 2025
Last update April 28, 2026

CVSS base score

7.1/10
Attack vector Network
Attack complexity Low
Privileges required None
User interaction Required
Confidentiality Low
Integrity Low

CVSS vector

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

What the vulnerability does

01Description

Cross-Site Request Forgery (CSRF) vulnerability in Kiotviet KiotViet Sync allows Stored XSS. This issue affects KiotViet Sync: from n/a through 1.8.4.

Explanation of Vulnerability in Simple Terms

02Summary

KiotViet Sync versions up to 1.8.4 are vulnerable to cross-site request forgery (CSRF) attacks. An attacker can craft a malicious webpage that, when visited by a logged-in user, performs unwanted actions on their behalf. The vulnerability affects confidentiality, integrity, and availability with low impact. No authentication is required from the attacker, but the victim must visit a malicious link or page.

What an attacker can do

03Attacker Capabilities

Perform unwanted actions on a user's KiotViet Sync account by tricking them into visiting a malicious webpage.

Potential impact on your site

04Site Impact

Users' KiotViet Sync accounts can be manipulated without their knowledge if they visit untrusted websites while logged in.

Conditions required to exploit

05Prerequisites

Victim must be logged into KiotViet Sync and click a malicious link or visit an attacker-controlled page.

Key dates

06Disclosure timeline

April 24, 2025 CVE published
April 28, 2026 Record updated