# CVE-2026-18080: File upload in ERP: Complete HR, Accounting & CRM Suite Built for WooCommerce

> Unauthenticated attackers can upload malicious PHP files via IMAP attachments to achieve remote code execution if the CRM module is enabled.

- **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:** 26 Aug 2026
- **Updated:** 26 Aug 2026
- **Also known as:** GHSA-xp5r-phw6-jcr2

## What is CVE-2026-18080?

CVE-2026-18080 is a critical vulnerability in wedevs ERP: Complete HR, Accounting & CRM Suite Built for WooCommerce, published on 26 Aug 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

The ERP: Complete HR, Accounting & CRM Suite Built for WooCommerce plugin for WordPress is vulnerable to Unrestricted File Type Upload in all versions up to, and including, 1.17.8 via the save_attachments() function. This is due to missing file extension validation and missing path normalization when CRM Email Connect processes inbound IMAP email attachments. This makes it possible for unauthenticated attackers to send a crafted email to the site's configured inbound mailbox with a forged References header matching the plugin's expected pattern and an attachment filename such as `../helper.php`, causing the cron-based IMAP sync job to write attacker-controlled PHP outside of the .htaccess-protected `crm-attachments` directory and into `wp-content/uploads/`. On configurations where PHP executes in uploads, this can lead to remote code execution. Exploitation requires the CRM module and IMAP Email Connect feature to be enabled and configured.

Weakness: CWE-434 (Unrestricted Upload of File with Dangerous Type)

## Which versions are affected by CVE-2026-18080?


## How do I fix CVE-2026-18080?

No fix has been published for CVE-2026-18080 yet. Limit exposure of the affected software until one is available.

## Is CVE-2026-18080 being exploited?

There is no known exploitation of CVE-2026-18080 in the wild and no public exploit code.

Public exploit code:

- Poc CVE-2026-18080 (github_poc): https://github.com/Polosss/By-Poloss..-..CVE-2026-18080

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-18080 and fix it if it is affected.

What it is: CVE-2026-18080 is a critical vulnerability in wedevs ERP: Complete HR, Accounting & CRM Suite Built for WooCommerce, published on 26 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-2026-18080 in the wild and no public exploit code.

Affected product: wedevs ERP: Complete HR, Accounting & CRM Suite Built for WooCommerce. 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-2026-18080/ (Markdown: https://insights.sbomify.com/CVE-2026-18080/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-18080
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-18080
- OSV: https://osv.dev/vulnerability/CVE-2026-18080

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From sbomify Insights: https://insights.sbomify.com/CVE-2026-18080/
Summaries are generated and may contain mistakes; the official description above is the record.