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

> Attackers can inject malicious scripts via CSRF, leading to stored XSS and potential account takeover in the KiotViet Sync plugin.

- **Severity:** High 7.1 (`CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:L`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** A user has to click or open something
- **Fix available:** No
- **Published:** 24 Apr 2025
- **Updated:** 28 Apr 2026
- **Also known as:** GHSA-m5jp-j4jf-fwmp

## What is CVE-2025-39381?

CVE-2025-39381 is a high-severity cross-site scripting vulnerability in KiotViet Sync, published on 24 Apr 2025. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.

### Official description

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.

Weakness: CWE-352 (Cross-Site Request Forgery)

## Which versions are affected by CVE-2025-39381?


## How do I fix CVE-2025-39381?

No fix has been published for CVE-2025-39381 yet. Limit exposure of the affected software until one is available.

## Is CVE-2025-39381 being exploited?

There is no known exploitation of CVE-2025-39381 in the wild and no public exploit code.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2025-39381 and fix it if it is affected.

What it is: CVE-2025-39381 is a high-severity cross-site scripting vulnerability in KiotViet Sync, published on 24 Apr 2025. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Exploitation: There is no known exploitation of CVE-2025-39381 in the wild and no public exploit code.

Affected product: KiotViet Sync. No package-level version data is available, so check the vendor advisory linked from the reference page.

Task:
1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.
2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.
3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.
4. Run the tests and summarise what changed and why.
5. If nothing in the project is affected, say so and change nothing.

Reference: https://insights.sbomify.com/CVE-2025-39381/ (Markdown: https://insights.sbomify.com/CVE-2025-39381/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2025-39381
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2025-39381
- OSV: https://osv.dev/vulnerability/CVE-2025-39381

---
From sbomify Insights: https://insights.sbomify.com/CVE-2025-39381/
Summaries are generated and may contain mistakes; the official description above is the record.