# CVE-2025-0364: BigAntSoft BigAnt Server Account Registration Bypass to File Upload RCE

> Unauthenticated attackers can register as admin via exposed SaaS mechanism and upload PHP code for remote code execution.

- **Severity:** Critical 9.8 (`CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 4 Feb 2025
- **Updated:** 14 May 2026
- **Also known as:** GHSA-cmgj-xph9-cc49

## What is CVE-2025-0364?

CVE-2025-0364 is a critical authentication bypass vulnerability in BigAntSoft BigAnt Server, published on 4 Feb 2025. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

BigAntSoft BigAnt Server, up to and including version 5.6.06, is vulnerable to unauthenticated remote code execution via account registration. An unauthenticated remote attacker can create an administrative user through the default exposed SaaS registration mechanism. Once an administrator, the attacker can upload and execute arbitrary PHP code using the "Cloud Storage Addin," leading to unauthenticated code execution.

Weakness: CWE-288 (Authentication Bypass Using an Alternate Path or Channel)

## Which versions are affected by CVE-2025-0364?

It affects 1 product.


Products: Bigantsoft Bigant Server.

## How do I fix CVE-2025-0364?

No fix has been published for CVE-2025-0364 yet. Limit exposure of the affected software until one is available.

## Is CVE-2025-0364 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2025-0364 exists.

Public exploit code:

- CVE-2025-0364: BigAnt Server RCE Exploit (github_poc): https://github.com/vulncheck-oss/cve-2025-0364

## Other vulnerabilities in BigAntSoft BigAnt Server

- [CVE-2022-23346](https://insights.sbomify.com/CVE-2022-23346/): File upload in n/a (high 8.8)
- [CVE-2022-23349](https://insights.sbomify.com/CVE-2022-23349/): Cross-site request forgery in n/a (high 8.8)
- [CVE-2022-26281](https://insights.sbomify.com/CVE-2022-26281/): Missing authorization in n/a (high 7.5)
- [CVE-2022-23345](https://insights.sbomify.com/CVE-2022-23345/): Missing authorization in n/a (high 7.5)
- [CVE-2022-23347](https://insights.sbomify.com/CVE-2022-23347/): Path traversal in n/a (high 7.5)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2025-0364 and fix it if it is affected.

What it is: CVE-2025-0364 is a critical authentication bypass vulnerability in BigAntSoft BigAnt Server, published on 4 Feb 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-2025-0364 exists.

Affected product: BigAntSoft BigAnt 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-2025-0364/ (Markdown: https://insights.sbomify.com/CVE-2025-0364/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2025-0364
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2025-0364
- OSV: https://osv.dev/vulnerability/CVE-2025-0364

---
From sbomify Insights: https://insights.sbomify.com/CVE-2025-0364/
Summaries are generated and may contain mistakes; the official description above is the record.