CVE-2026-123751 WP Duplicate <= 1.1.11 - Unauthenticated Arbitrary File Upload via Authentication Bypass
Critical 9.8
Published
Updated
Check this codebase for CVE-2026-123751 and fix it if it is affected.
What it is: CVE-2026-123751 is a critical vulnerability in Unknown WP Duplicate, published on 9 Nov 2026.
Exploitation: There is no known exploitation of CVE-2026-123751 in the wild and no public exploit code.
Affected product: Unknown WP Duplicate. 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-2026-123751/ (Markdown: https://insights.sbomify.com/CVE-2026-123751/index.md)
- Exploited in the wild
- Not known
- Fix
- None listed
What is CVE-2026-123751?
CVE-2026-123751 is a critical vulnerability in Unknown WP Duplicate, published on 9 Nov 2026.
Official description
The WP Duplicate WordPress plugin through 1.1.11 does not properly verify a request authentication value and does not validate the path or type of uploaded files, making it possible for unauthenticated attackers to write arbitrary files to the server and achieve remote code execution. This vulnerability is being actively exploited in the wild.
Weakness: CWE-434
Which versions are affected by CVE-2026-123751?
How do I fix CVE-2026-123751?
No fix has been published for CVE-2026-123751 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-123751 being exploited?
There is no known exploitation of CVE-2026-123751 in the wild and no public exploit code.
Sources
Also known as GHSA-v9cp-82qp-rrj6.