# CVE-2025-3999: Seeyon Zhiyuan OA Web Application System URL Parameter date.jsp cross site scripting

> Remote attackers can execute arbitrary scripts via the date.jsp URL parameter in Seeyon Zhiyuan OA, potentially compromising user sessions.

- **Severity:** Medium 5.1 (`CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N`)
- **Exploited in the wild:** Not known
- **Login needed:** Any signed-in user
- **Attackable:** Over the internet
- **Victim action needed:** A user has to click or open something
- **Fix available:** No
- **Published:** 28 Apr 2025
- **Updated:** 12 May 2025
- **Also known as:** GHSA-66m2-cpmm-mc9x

## What is CVE-2025-3999?

CVE-2025-3999 is a medium-severity cross-site scripting vulnerability in Seeyon Zhiyuan OA Web Application System, published on 28 Apr 2025. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.

### Official description

A vulnerability, which was classified as problematic, has been found in Seeyon Zhiyuan OA Web Application System 8.1 SP2. This issue affects some unknown processing of the file seeyon\opt\Seeyon\A8\ApacheJetspeed\webapps\seeyon\common\js\addDate\date.jsp of the component URL Parameter Handler. The manipulation leads to cross site scripting. The attack may be initiated remotely. The exploit has been disclosed to the public and may be used.

Weakness: CWE-94 (Improper Control of Generation of Code), CWE-79 (Improper Neutralization of Input During Web Page Generation)

## Which versions are affected by CVE-2025-3999?

It affects 1 product.


Products: Seeyon Oa Web Application System.

## How do I fix CVE-2025-3999?

No fix has been published for CVE-2025-3999 yet. Limit exposure of the affected software until one is available.

## Is CVE-2025-3999 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2025-3999 exists.

## Other vulnerabilities in Seeyon Zhiyuan OA Web Application System

- [CVE-2025-4529](https://insights.sbomify.com/CVE-2025-4529/): Seeyon Zhiyuan OA Web Application System ZIP File M3CoreController.class download path traversal (medium 5.3)
- [CVE-2025-4531](https://insights.sbomify.com/CVE-2025-4531/): Seeyon Zhiyuan OA Web Application System Beetl Template EhrSalaryPayrollServiceImpl.class postData code injection (medium 5.3)
- [CVE-2025-4000](https://insights.sbomify.com/CVE-2025-4000/): Seeyon Zhiyuan OA Web Application System ssoproxy.jsp cross site scripting (medium 5.1)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2025-3999 and fix it if it is affected.

What it is: CVE-2025-3999 is a medium-severity cross-site scripting vulnerability in Seeyon Zhiyuan OA Web Application System, published on 28 Apr 2025. Any signed-in user can exploit it over the network, 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-2025-3999 exists.

Affected product: Seeyon Zhiyuan OA Web Application System. 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-2025-3999/ (Markdown: https://insights.sbomify.com/CVE-2025-3999/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2025-3999
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2025-3999
- OSV: https://osv.dev/vulnerability/CVE-2025-3999

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From sbomify Insights: https://insights.sbomify.com/CVE-2025-3999/
Summaries are generated and may contain mistakes; the official description above is the record.