# CVE-2025-14340: Admin Account Takeover via malicious URL payload

> An attacker can use a malicious URL to trick administrators into changing their password, leading to account takeover in Payara Server.

- **Severity:** High 7.3 (`CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:A/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:U/S:P/AU:N/R:U/RE:M/U:Red`)
- **Exploited in the wild:** Not known
- **Login needed:** An administrator
- **Attackable:** Over the internet
- **Victim action needed:** A user has to click or open something
- **Fix available:** No
- **Published:** 18 Feb 2026
- **Updated:** 19 Feb 2026
- **Also known as:** GHSA-rgjw-pqcr-56gf

## What is CVE-2025-14340?

CVE-2025-14340 is a high-severity cross-site scripting vulnerability in Payara Server, published on 18 Feb 2026. An attacker needs administrator access to exploit it, and only if a user opens a file or follows a link.

### Official description

Cross-site scripting in REST Management Interface in Payara Server <4.1.2.191.54, <5.83.0, <6.34.0, <7.2026.1 allows an attacker to mislead the administrator to change the admin password via URL Payload.

Weakness: CWE-79 (Improper Neutralization of Input During Web Page Generation)

## Which versions are affected by CVE-2025-14340?


## How do I fix CVE-2025-14340?

No fix has been published for CVE-2025-14340 yet. Limit exposure of the affected software until one is available.

## Is CVE-2025-14340 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2025-14340 exists.

Public exploit code:

- PoC for CVE-2025-14340: Admin account takeover in Payara Server (github_poc): https://github.com/DeepSecurityResearch/CVE-2025-14340
- Payara Server - Cross-Site Scripting (nuclei): http/cves/2025/CVE-2025-14340.yaml

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2025-14340 and fix it if it is affected.

What it is: CVE-2025-14340 is a high-severity cross-site scripting vulnerability in Payara Server, published on 18 Feb 2026. An attacker needs administrator access to exploit it, and only if a user opens a file or follows a link.
Exploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2025-14340 exists.

Affected product: Payara Server. 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-2025-14340/ (Markdown: https://insights.sbomify.com/CVE-2025-14340/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2025-14340
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2025-14340
- OSV: https://osv.dev/vulnerability/CVE-2025-14340

---
From sbomify Insights: https://insights.sbomify.com/CVE-2025-14340/
Summaries are generated and may contain mistakes; the official description above is the record.