# CVE-2026-7526: PDF Embedder <= 4.9.3 - Authenticated (Contributor+) Information Exposure via Block Editor Page

> Authenticated contributors can extract sensitive configuration data, including license keys if the premium add-on is installed, from the PDF Embedder 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:** 28 May 2026
- **Updated:** 22 Aug 2026
- **Also known as:** GHSA-f2w5-jwq5-fprh

## What is CVE-2026-7526?

CVE-2026-7526 is a medium-severity vulnerability in smub PDF Embedder – PDF Viewer & Embed PDF Files for WordPress, published on 28 May 2026. Any signed-in user can exploit it over the network, with no action from the victim.

### Official description

The PDF Embedder plugin for WordPress is vulnerable to Sensitive Information Exposure in all versions up to, and including, 4.9.3 via the enqueue_block_assets. This makes it possible for authenticated attackers, with contributor-level access and above, to extract configuration data. License key exposure occurs when the premium add-on is also installed and has saved a key; on Lite-only installations, the exposed data is limited to non-sensitive viewer configuration values such as width, height, toolbar settings, usage tracking, and plan.

Weakness: CWE-200 (Exposure of Sensitive Information to an Unauthorized Actor)

## Which versions are affected by CVE-2026-7526?


## How do I fix CVE-2026-7526?

No fix has been published for CVE-2026-7526 yet. Limit exposure of the affected software until one is available.

## Is CVE-2026-7526 being exploited?

There is no known exploitation of CVE-2026-7526 in the wild and no public exploit code.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-7526 and fix it if it is affected.

What it is: CVE-2026-7526 is a medium-severity vulnerability in smub PDF Embedder – PDF Viewer & Embed PDF Files for WordPress, published on 28 May 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-2026-7526 in the wild and no public exploit code.

Affected product: smub PDF Embedder – PDF Viewer & Embed PDF Files for WordPress. 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-2026-7526/ (Markdown: https://insights.sbomify.com/CVE-2026-7526/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-7526
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-7526
- OSV: https://osv.dev/vulnerability/CVE-2026-7526

---
From sbomify Insights: https://insights.sbomify.com/CVE-2026-7526/
Summaries are generated and may contain mistakes; the official description above is the record.