# CVE-2026-89244: WWBN AVideo Reflected XSS via Gallery Category getBackURL

> Reflected XSS in AVideo allows script injection via the getBackURL parameter when SubCategorys are enabled, affecting visitors interacting with the Back control.

- **Severity:** Medium 5.3 (`CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:L/VI:L/VA:N/SC:L/SI:L/SA:N`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** A user has to click or open something
- **Fix available:** No
- **Published:** 11 Sep 2026
- **Updated:** 11 Sep 2026
- **Also known as:** GHSA-7c8p-rvh6-cm6v, GHSA-j2r3-gr47-rgfm

## What is CVE-2026-89244?

CVE-2026-89244 is a medium-severity cross-site scripting vulnerability in WWBN AVideo, published on 11 Sep 2026. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.

### Official description

WWBN AVideo through commit c3edcc274c389816d434acadac07ee78eaf330c1 contains a reflected cross-site scripting vulnerability in plugin/Gallery/view/Category.php when SubCategorys is enabled. The getBackURL parameter is echoed into an href attribute without HTML encoding, allowing attackers to inject malicious scripts that execute in visitors' browsers when they interact with the Back control.

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

## Which versions are affected by CVE-2026-89244?


## How do I fix CVE-2026-89244?

No fix has been published for CVE-2026-89244 yet. Limit exposure of the affected software until one is available.

## Is CVE-2026-89244 being exploited?

There is no known exploitation of CVE-2026-89244 in the wild and no public exploit code.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-89244 and fix it if it is affected.

What it is: CVE-2026-89244 is a medium-severity cross-site scripting vulnerability in WWBN AVideo, published on 11 Sep 2026. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Exploitation: There is no known exploitation of CVE-2026-89244 in the wild and no public exploit code.

Affected product: WWBN AVideo. 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-2026-89244/ (Markdown: https://insights.sbomify.com/CVE-2026-89244/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-89244
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-89244
- OSV: https://osv.dev/vulnerability/CVE-2026-89244

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From sbomify Insights: https://insights.sbomify.com/CVE-2026-89244/
Summaries are generated and may contain mistakes; the official description above is the record.