CVE-2026-101138 CMP - Coming Soon & Maintenance 4.1.19 - 4.1.20 - Unauthenticated Maintenance Mode Bypass via Custom URL Whitelist
Medium 5.3
Published
Updated
Check this codebase for CVE-2026-101138 and fix it if it is affected.
What it is: CVE-2026-101138 is a medium-severity vulnerability in Unknown CMP – Coming Soon & Maintenance, published on 21 Oct 2026.
Exploitation: There is no known exploitation of CVE-2026-101138 in the wild and no public exploit code.
Affected product: Unknown CMP – Coming Soon & Maintenance. 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-2026-101138/ (Markdown: https://insights.sbomify.com/CVE-2026-101138/index.md)
- Exploited in the wild
- Not known
- Fix
- None listed
What is CVE-2026-101138?
CVE-2026-101138 is a medium-severity vulnerability in Unknown CMP – Coming Soon & Maintenance, published on 21 Oct 2026.
Official description
The CMP – Coming Soon & Maintenance WordPress plugin before 4.1.21 does not correctly apply maintenance mode to pages added to its page whitelist by manually entered URL pattern, allowing unauthenticated visitors to view the content of those pages while maintenance mode is active.
Weakness: CWE-284
Which versions are affected by CVE-2026-101138?
How do I fix CVE-2026-101138?
No fix has been published for CVE-2026-101138 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-101138 being exploited?
There is no known exploitation of CVE-2026-101138 in the wild and no public exploit code.
Sources
Also known as GHSA-8phv-5wjj-2pv3.