# CVE-2026-15302: ARMember <= 4.0.27 - Directory Traversal via X-FILENAME

> Unauthenticated attackers can exploit directory traversal to upload and overwrite files outside the intended directory in the ARMember WordPress plugin.

- **Severity:** Medium 5.3 (`CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 10 Jul 2026
- **Updated:** 14 Jul 2026
- **Also known as:** GHSA-7hhj-47v7-pg7c

## What is CVE-2026-15302?

CVE-2026-15302 is a medium-severity path traversal vulnerability in reputeinfosystems ARMember – Membership Plugin, Content Restriction, Member Levels, User Profile & User signup, published on 10 Jul 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

The ARMember plugin for WordPress is vulnerable to Directory Traversal in all versions up to, and including, 4.0.27 via the 'X-FILENAME' HTTP header. This makes it possible for unauthenticated attackers to upload and overwrite certain files (e.g., CSS) to directories outside the 'wp-content/uploads/armember' directory.

Weakness: CWE-36 (Absolute Path Traversal)

## Which versions are affected by CVE-2026-15302?


## How do I fix CVE-2026-15302?

No fix has been published for CVE-2026-15302 yet. Limit exposure of the affected software until one is available.

## Is CVE-2026-15302 being exploited?

There is no known exploitation of CVE-2026-15302 in the wild and no public exploit code.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-15302 and fix it if it is affected.

What it is: CVE-2026-15302 is a medium-severity path traversal vulnerability in reputeinfosystems ARMember – Membership Plugin, Content Restriction, Member Levels, User Profile & User signup, published on 10 Jul 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-2026-15302 in the wild and no public exploit code.

Affected product: reputeinfosystems ARMember – Membership Plugin, Content Restriction, Member Levels, User Profile & User signup. 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-2026-15302/ (Markdown: https://insights.sbomify.com/CVE-2026-15302/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-15302
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-15302
- OSV: https://osv.dev/vulnerability/CVE-2026-15302

---
From sbomify Insights: https://insights.sbomify.com/CVE-2026-15302/
Summaries are generated and may contain mistakes; the official description above is the record.