# CVE-2025-54834: OPEXUS FOIAXpress Public Access Link (PAL) unauthenticated username enumeration

> Unauthenticated attackers can enumerate valid usernames via the CreateRequest endpoint due to missing rate limiting, exposing user account existence.

- **Severity:** Medium 6.9 (`CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 31 Jul 2025
- **Updated:** 31 Jul 2025
- **Also known as:** GHSA-989f-fh5x-8jw4

## What is CVE-2025-54834?

CVE-2025-54834 is a medium-severity vulnerability in OPEXUS FOIAXpress Public Access Link (PAL), published on 31 Jul 2025. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

OPEXUS FOIAXpress Public Access Link (PAL) version v11.1.0 allows an unauthenticated, remote attacker to query the /App/CreateRequest.aspx endpoint to check for the existence of valid usernames. There are no rate-limiting mechanisms in place.

Weakness: CWE-204 (Observable Response Discrepancy)

## Which versions are affected by CVE-2025-54834?

It affects 1 product.


Products: Opexustech Foiaxpress Public Access Link.

## How do I fix CVE-2025-54834?

No fix has been published for CVE-2025-54834 yet. Limit exposure of the affected software until one is available.

## Is CVE-2025-54834 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2025-54834 exists.

## Other vulnerabilities in OPEXUS FOIAXpress Public Access Link (PAL)

- [CVE-2025-58462](https://insights.sbomify.com/CVE-2025-58462/): OPEXUS FOIAXpress PAL SQL injection (critical 9.3)
- [CVE-2024-53553](https://insights.sbomify.com/CVE-2024-53553/): Auth bypass in n/a (critical 9.1)
- [CVE-2025-54833](https://insights.sbomify.com/CVE-2025-54833/): OPEXUS FOIAXpress Public Access Link (PAL) account-lockout and CAPTCHA protection bypass (medium 6.9)
- [CVE-2025-54832](https://insights.sbomify.com/CVE-2025-54832/): OPEXUS FOIAXpress Public Access Link (PAL) state and territory list unauthorized modification (medium 5.3)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2025-54834 and fix it if it is affected.

What it is: CVE-2025-54834 is a medium-severity vulnerability in OPEXUS FOIAXpress Public Access Link (PAL), published on 31 Jul 2025. An attacker can exploit it over the internet without logging in, with no action from the victim.
Exploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2025-54834 exists.

Affected product: OPEXUS FOIAXpress Public Access Link (PAL). 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-2025-54834/ (Markdown: https://insights.sbomify.com/CVE-2025-54834/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2025-54834
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2025-54834
- OSV: https://osv.dev/vulnerability/CVE-2025-54834

---
From sbomify Insights: https://insights.sbomify.com/CVE-2025-54834/
Summaries are generated and may contain mistakes; the official description above is the record.