# CVE-2026-5075: Information disclosure in All in One SEO – Powerful SEO Plugin to Boost SEO Rankings & Increase Traffic

> Authenticated contributors can view sensitive API tokens and license data exposed in page source due to improper masking in the All in One SEO 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:** 20 May 2026
- **Updated:** 20 May 2026
- **Also known as:** GHSA-wvqf-p272-v65m

## What is CVE-2026-5075?

CVE-2026-5075 is a medium-severity vulnerability in smub All in One SEO – Powerful SEO Plugin to Boost SEO Rankings & Increase Traffic, published on 20 May 2026. Any signed-in user can exploit it over the network, with no action from the victim.

### Official description

The All in One SEO plugin for WordPress is vulnerable to Sensitive Information Exposure via 'internalOptions' localized script data in versions up to, and including, 4.9.7 due to sensitive internal option data being passed to wp_localize_script() in post editor contexts without effective masking for low-privilege users. This makes it possible for authenticated attackers, with contributor-level access and above, to view configured API/OAuth tokens and license-related values from page source.

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

## Which versions are affected by CVE-2026-5075?


## How do I fix CVE-2026-5075?

No fix has been published for CVE-2026-5075 yet. Limit exposure of the affected software until one is available.

## Is CVE-2026-5075 being exploited?

There is no known exploitation of CVE-2026-5075 in the wild and no public exploit code.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-5075 and fix it if it is affected.

What it is: CVE-2026-5075 is a medium-severity vulnerability in smub All in One SEO – Powerful SEO Plugin to Boost SEO Rankings & Increase Traffic, published on 20 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-2026-5075 in the wild and no public exploit code.

Affected product: smub All in One SEO – Powerful SEO Plugin to Boost SEO Rankings & Increase Traffic. 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-2026-5075/ (Markdown: https://insights.sbomify.com/CVE-2026-5075/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-5075
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-5075
- OSV: https://osv.dev/vulnerability/CVE-2026-5075

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From sbomify Insights: https://insights.sbomify.com/CVE-2026-5075/
Summaries are generated and may contain mistakes; the official description above is the record.