CVE-2026-39579 WordPress B Blocks plugin <= 2.0.31 - Privilege Escalation vulnerability
High 8.8
Published
Updated
Check this codebase for CVE-2026-39579 and fix it if it is affected.
What it is: CVE-2026-39579 is a high-severity vulnerability in bPlugins B Blocks, published on 15 Jun 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-2026-39579 in the wild and no public exploit code.
Affected product: bPlugins B Blocks. 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-2026-39579/ (Markdown: https://insights.sbomify.com/CVE-2026-39579/index.md)
A contributor can escalate privileges in the B Blocks WordPress plugin, allowing unauthorized access to higher-level administrative functions.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-39579?
CVE-2026-39579 is a high-severity vulnerability in bPlugins B Blocks, published on 15 Jun 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
Contributor Privilege Escalation in B Blocks <= 2.0.31 versions.
Weakness: CWE-266
Which versions are affected by CVE-2026-39579?
How do I fix CVE-2026-39579?
No fix has been published for CVE-2026-39579 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-39579 being exploited?
There is no known exploitation of CVE-2026-39579 in the wild and no public exploit code.
Sources
Also known as GHSA-c797-w9mm-hhvj.