# CVE-2026-81737: FAQ Builder AYS 1.6.3 - 1.8.4 - Unauthenticated Stored XSS via ays_get_user_information

> Unauthenticated attackers can inject malicious scripts via FAQ Builder AYS plugin, leading to stored XSS that executes in the administrator's browser context.

- **Severity:** High 8.8 (`CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H`)
- **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:** 2 Sep 2026
- **Updated:** 2 Sep 2026
- **Also known as:** GHSA-rg8x-42cw-c3jx

## What is CVE-2026-81737?

CVE-2026-81737 is a high-severity cross-site scripting vulnerability in Unknown FAQ Builder AYS, published on 2 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

The FAQ Builder AYS WordPress plugin before 1.8.5 does not sanitize or escape content submitted by unauthenticated visitors before storing it and outputting it in an admin area page, and the escaping it does apply is undone by a subsequent decoding step, leading to Stored XSS which will execute in the context of a logged in administrator.

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

## Which versions are affected by CVE-2026-81737?


## How do I fix CVE-2026-81737?

No fix has been published for CVE-2026-81737 yet. Limit exposure of the affected software until one is available.

## Is CVE-2026-81737 being exploited?

There is no known exploitation of CVE-2026-81737 in the wild and no public exploit code.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-81737 and fix it if it is affected.

What it is: CVE-2026-81737 is a high-severity cross-site scripting vulnerability in Unknown FAQ Builder AYS, published on 2 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-2026-81737 in the wild and no public exploit code.

Affected product: Unknown FAQ Builder AYS. 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-2026-81737/ (Markdown: https://insights.sbomify.com/CVE-2026-81737/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-81737
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-81737
- OSV: https://osv.dev/vulnerability/CVE-2026-81737

---
From sbomify Insights: https://insights.sbomify.com/CVE-2026-81737/
Summaries are generated and may contain mistakes; the official description above is the record.