# CVE-2026-88788: Text Styler <= 1.1.1 - Contributor+ Stored XSS

> Contributors can inject JavaScript via styling values, leading to code execution in administrators' browsers when viewing posts.

- **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:** 22 Sep 2026
- **Updated:** 22 Sep 2026
- **Also known as:** GHSA-gxqc-8737-rfmf

## What is CVE-2026-88788?

CVE-2026-88788 is a medium-severity cross-site scripting vulnerability in Unknown Text Styler, published on 22 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 Text Styler WordPress plugin through 1.1.1 does not sanitise and escape user-supplied styling values before outputting them within a front-end style block, and does not verify that a user may edit the target post, allowing users with contributor-level access or above to store JavaScript that executes in the browser of anyone viewing the affected post, including administrators.

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

## Which versions are affected by CVE-2026-88788?


## How do I fix CVE-2026-88788?

No fix has been published for CVE-2026-88788 yet. Limit exposure of the affected software until one is available.

## Is CVE-2026-88788 being exploited?

There is no known exploitation of CVE-2026-88788 in the wild and no public exploit code.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-88788 and fix it if it is affected.

What it is: CVE-2026-88788 is a medium-severity cross-site scripting vulnerability in Unknown Text Styler, published on 22 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-2026-88788 in the wild and no public exploit code.

Affected product: Unknown Text Styler. 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-2026-88788/ (Markdown: https://insights.sbomify.com/CVE-2026-88788/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-88788
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-88788
- OSV: https://osv.dev/vulnerability/CVE-2026-88788

---
From sbomify Insights: https://insights.sbomify.com/CVE-2026-88788/
Summaries are generated and may contain mistakes; the official description above is the record.