# CVE-2026-1541: Information disclosure in Avada (Fusion) Builder

> Authenticated attackers can extract protected post metadata via insecure direct object reference in the Avada Builder plugin.

- **Severity:** Medium 4.3 (`CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N`)
- **Exploited in the wild:** Not known
- **Login needed:** Any signed-in user
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 15 Apr 2026
- **Updated:** 15 Apr 2026
- **Also known as:** GHSA-j7wx-2ff4-pc88

## What is CVE-2026-1541?

CVE-2026-1541 is a medium-severity vulnerability in themefusion Avada (Fusion) Builder, published on 15 Apr 2026. Any signed-in user can exploit it over the network, with no action from the victim.

### Official description

The Avada (Fusion) Builder plugin for WordPress is vulnerable to Sensitive Information Exposure in all versions up to, and including, 3.15.1. This is due to the plugin's `fusion_get_post_custom_field()` function failing to validate whether metadata keys are protected (underscore-prefixed). This makes it possible for authenticated attackers, with Subscriber-level access and above, to extract protected post metadata fields that should not be publicly accessible via the Dynamic Data feature's `post_custom_field` parameter.

Weakness: CWE-639 (Authorization Bypass Through User-Controlled Key)

## Which versions are affected by CVE-2026-1541?


## How do I fix CVE-2026-1541?

No fix has been published for CVE-2026-1541 yet. Limit exposure of the affected software until one is available.

## Is CVE-2026-1541 being exploited?

There is no known exploitation of CVE-2026-1541 in the wild and no public exploit code.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-1541 and fix it if it is affected.

What it is: CVE-2026-1541 is a medium-severity vulnerability in themefusion Avada (Fusion) Builder, published on 15 Apr 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2026-1541 in the wild and no public exploit code.

Affected product: themefusion Avada (Fusion) Builder. 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-2026-1541/ (Markdown: https://insights.sbomify.com/CVE-2026-1541/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-1541
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-1541
- OSV: https://osv.dev/vulnerability/CVE-2026-1541

---
From sbomify Insights: https://insights.sbomify.com/CVE-2026-1541/
Summaries are generated and may contain mistakes; the official description above is the record.