CVE-2026-107506 Simple Banner < 3.3.3 - Authenticated Privilege Escalation via User Permissions Setting
High 7.5
Published
Updated
Check this codebase for CVE-2026-107506 and fix it if it is affected.
What it is: CVE-2026-107506 is a high-severity vulnerability in Unknown Simple Banner, published on 21 Oct 2026.
Exploitation: There is no known exploitation of CVE-2026-107506 in the wild and no public exploit code.
Affected product: Unknown Simple Banner. 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-2026-107506/ (Markdown: https://insights.sbomify.com/CVE-2026-107506/index.md)
- Exploited in the wild
- Not known
- Fix
- None listed
What is CVE-2026-107506?
CVE-2026-107506 is a high-severity vulnerability in Unknown Simple Banner, published on 21 Oct 2026.
Official description
The Simple Banner WordPress plugin before 3.3.3 does not correctly limit the capabilities it grants to the user roles an administrator allows to manage its banners, granting such roles the full administrator capability, which allows users in a low-privileged role to escalate their privileges and fully compromise the site.
Weakness: CWE-269
Which versions are affected by CVE-2026-107506?
How do I fix CVE-2026-107506?
No fix has been published for CVE-2026-107506 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-107506 being exploited?
There is no known exploitation of CVE-2026-107506 in the wild and no public exploit code.
Sources
Also known as GHSA-j3vp-w9x8-7pp7.