# CVE-2026-86788: HT Mega 3.2.0 - 3.2.5 - Contributor+ Stored XSS via Section Headline Tag

> Contributors can inject arbitrary JavaScript via section headline tags in HT Mega Addons for Elementor, potentially compromising higher-privileged users.

- **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:** 17 Sep 2026
- **Updated:** 17 Sep 2026
- **Also known as:** GHSA-hgm3-7rq2-3rv9

## What is CVE-2026-86788?

CVE-2026-86788 is a medium-severity cross-site scripting vulnerability in Unknown HT Mega Addons for Elementor, published on 17 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 HT Mega Addons for Elementor  WordPress plugin before 3.2.6 does not restrict the HTML tag name used to render the section headline in several of its widgets and blocks to a safe allowlist, allowing users with contributor-level access and above to store a crafted tag name that executes arbitrary JavaScript when the content is viewed, including by higher-privileged users who review or publish it.

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

## Which versions are affected by CVE-2026-86788?


## How do I fix CVE-2026-86788?

No fix has been published for CVE-2026-86788 yet. Limit exposure of the affected software until one is available.

## Is CVE-2026-86788 being exploited?

There is no known exploitation of CVE-2026-86788 in the wild and no public exploit code.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-86788 and fix it if it is affected.

What it is: CVE-2026-86788 is a medium-severity cross-site scripting vulnerability in Unknown HT Mega Addons for Elementor, published on 17 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-2026-86788 in the wild and no public exploit code.

Affected product: Unknown HT Mega Addons for Elementor. 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-2026-86788/ (Markdown: https://insights.sbomify.com/CVE-2026-86788/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-86788
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-86788
- OSV: https://osv.dev/vulnerability/CVE-2026-86788

---
From sbomify Insights: https://insights.sbomify.com/CVE-2026-86788/
Summaries are generated and may contain mistakes; the official description above is the record.