# CVE-2026-14844: Master Slider <= 3.11.2 - Contributor+ Stored XSS via ms_slider Shortcode Attributes

> Contributors can inject malicious scripts via shortcode attributes, leading to stored XSS when posts are viewed.

- **Severity:** Medium 6.8 (`CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:H/I:H/A:H`)
- **Exploited in the wild:** Not known
- **Login needed:** An administrator
- **Attackable:** Over the internet
- **Victim action needed:** A user has to click or open something
- **Fix available:** No
- **Published:** 20 Sep 2026
- **Updated:** 20 Sep 2026
- **Also known as:** GHSA-7q5g-f6v8-f8ch

## What is CVE-2026-14844?

CVE-2026-14844 is a medium-severity cross-site scripting vulnerability in Unknown Master Slider, published on 20 Sep 2026. An attacker needs administrator access to exploit it, and only if a user opens a file or follows a link.

### Official description

The Master Slider  WordPress plugin through 3.11.2 does not sanitise and escape some of its shortcode attributes before outputting them in an inline script context, which could allow users with the Contributor role and above to perform Stored Cross-Site Scripting attacks that execute when the affected post is viewed.

No fixed version is available. Until one ships, restrict the Contributor role to trusted users, or deactivate the Master Slider  WordPress plugin through 3.11.2. Site owners who need to keep it active can block the ms_slider shortcode for roles below Editor, for example with a shortcode-restriction Master Slider  WordPress plugin through 3.11.2, which prevents the attack without removing the Master Slider  WordPress plugin through 3.11.2.

Weakness: CWE-79 (Improper Neutralization of Input During Web Page Generation)

## Which versions are affected by CVE-2026-14844?


## How do I fix CVE-2026-14844?

No fix has been published for CVE-2026-14844 yet. Limit exposure of the affected software until one is available.

## Is CVE-2026-14844 being exploited?

There is no known exploitation of CVE-2026-14844 in the wild and no public exploit code.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-14844 and fix it if it is affected.

What it is: CVE-2026-14844 is a medium-severity cross-site scripting vulnerability in Unknown Master Slider, published on 20 Sep 2026. An attacker needs administrator access to exploit it, and only if a user opens a file or follows a link.
Exploitation: There is no known exploitation of CVE-2026-14844 in the wild and no public exploit code.

Affected product: Unknown Master Slider. 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-2026-14844/ (Markdown: https://insights.sbomify.com/CVE-2026-14844/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-14844
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-14844
- OSV: https://osv.dev/vulnerability/CVE-2026-14844

---
From sbomify Insights: https://insights.sbomify.com/CVE-2026-14844/
Summaries are generated and may contain mistakes; the official description above is the record.