# CVE-2026-49827: WebErpMesv2 has Unauthenticated RCE via Unrestricted File Upload in HR Expense scan_file (CWE-434)

> Attackers can upload arbitrary PHP files to achieve remote code execution on WebErpMesv2 installations due to unrestricted file upload and broken authentication checks.

- **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:** 13 Aug 2026
- **Updated:** 13 Aug 2026
- **Also known as:** GHSA-chhq-7p67-2ff9

## What is CVE-2026-49827?

CVE-2026-49827 is a critical vulnerability in SMEWebify WebErpMesv2, published on 13 Aug 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

WebErpMesv2 is a Resource Management and Manufacturing execution system Web for industry. Versions 1.19 and prior allow any self-registered user to upload arbitrary PHP files through the HR Expense scan_file parameter, leading to Remote Code Execution. Combined with open registration (no invite required) and broken role middleware (CheckUserRole silently swallows RouteNotFoundException), this chain is effectively unauthenticated RCE against any default installation. The issue is patched in commit 5c54862fa044b363fd2be03d586750e81afd6818.

Weakness: CWE-434 (Unrestricted Upload of File with Dangerous Type), CWE-306 (Missing Authentication for Critical Functionality), CWE-20 (Improper Input Validation)

## Which versions are affected by CVE-2026-49827?


## How do I fix CVE-2026-49827?

No fix has been published for CVE-2026-49827 yet. Limit exposure of the affected software until one is available.

## Is CVE-2026-49827 being exploited?

There is no known exploitation of CVE-2026-49827 in the wild and no public exploit code.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-49827 and fix it if it is affected.

What it is: CVE-2026-49827 is a critical vulnerability in SMEWebify WebErpMesv2, published on 13 Aug 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2026-49827 in the wild and no public exploit code.

Affected product: SMEWebify WebErpMesv2. 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-2026-49827/ (Markdown: https://insights.sbomify.com/CVE-2026-49827/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-49827
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-49827
- OSV: https://osv.dev/vulnerability/CVE-2026-49827

---
From sbomify Insights: https://insights.sbomify.com/CVE-2026-49827/
Summaries are generated and may contain mistakes; the official description above is the record.