# CVE-2025-27356: WordPress Sticky Header On Scroll plugin <= 1.0 - Broken Access Control vulnerability

> Attackers can bypass access controls in the Sticky Header On Scroll WordPress plugin to perform unauthorized actions.

- **Severity:** Medium 5.4 (`CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:L`)
- **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:** 24 Feb 2025
- **Updated:** 28 Apr 2026
- **Also known as:** GHSA-m6ff-f9xg-9wxx

## What is CVE-2025-27356?

CVE-2025-27356 is a medium-severity missing authorization vulnerability in Hardik Sticky Header On Scroll, published on 24 Feb 2025. Any signed-in user can exploit it over the network, with no action from the victim.

### Official description

Missing Authorization vulnerability in Hardik Sticky Header On Scroll sticky-header-on-scroll allows Exploiting Incorrectly Configured Access Control Security Levels.This issue affects Sticky Header On Scroll: from n/a through <= 1.0.

Weakness: CWE-862 (Missing Authorization)

## Which versions are affected by CVE-2025-27356?


## How do I fix CVE-2025-27356?

No fix has been published for CVE-2025-27356 yet. Limit exposure of the affected software until one is available.

## Is CVE-2025-27356 being exploited?

There is no known exploitation of CVE-2025-27356 in the wild and no public exploit code.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2025-27356 and fix it if it is affected.

What it is: CVE-2025-27356 is a medium-severity missing authorization vulnerability in Hardik Sticky Header On Scroll, published on 24 Feb 2025. Any signed-in user can exploit it over the network, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2025-27356 in the wild and no public exploit code.

Affected product: Hardik Sticky Header On Scroll. 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-2025-27356/ (Markdown: https://insights.sbomify.com/CVE-2025-27356/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2025-27356
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2025-27356
- OSV: https://osv.dev/vulnerability/CVE-2025-27356

---
From sbomify Insights: https://insights.sbomify.com/CVE-2025-27356/
Summaries are generated and may contain mistakes; the official description above is the record.