# CVE-2026-93339: Ditty < 3.1.70 Stored XSS via Layout Tag Wrapper Attribute

> Authenticated users can inject malicious HTML into Ditty layout tags, leading to stored XSS execution in visitors' browsers.

- **Severity:** Medium 5.1 (`CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N`)
- **Exploited in the wild:** Not known
- **Login needed:** Any signed-in user
- **Attackable:** Over the internet
- **Victim action needed:** A user has to click or open something
- **Fix available:** No
- **Published:** 21 Sep 2026
- **Updated:** 1 Oct 2026
- **Also known as:** GHSA-3vrp-5rc4-9852

## What is CVE-2026-93339?

CVE-2026-93339 is a medium-severity cross-site scripting vulnerability in Metaphor Creations Ditty, published on 21 Sep 2026. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.

### Official description

Metaphor Creations Ditty (ditty-news-ticker) before 3.1.70 contains a stored cross-site scripting vulnerability that allows authenticated users with Author-level privileges or higher to inject arbitrary HTML elements by supplying malicious wrapper attribute values in layout tags. The ditty_layout_render_tag_wrapper() function inserts caller-supplied wrapper attribute values directly as HTML element names without allowlist validation, bypassing wp_kses_post() sanitization because KSES runs at save time before layout tag attributes are resolved at render time, causing the payload to execute in the browser of any visitor viewing posts or pages embedding the affected Ditty item.

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

## Which versions are affected by CVE-2026-93339?


## How do I fix CVE-2026-93339?

No fix has been published for CVE-2026-93339 yet. Limit exposure of the affected software until one is available.

## Is CVE-2026-93339 being exploited?

There is no known exploitation of CVE-2026-93339 in the wild and no public exploit code.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-93339 and fix it if it is affected.

What it is: CVE-2026-93339 is a medium-severity cross-site scripting vulnerability in Metaphor Creations Ditty, published on 21 Sep 2026. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.
Exploitation: There is no known exploitation of CVE-2026-93339 in the wild and no public exploit code.

Affected product: Metaphor Creations Ditty. 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-2026-93339/ (Markdown: https://insights.sbomify.com/CVE-2026-93339/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-93339
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-93339
- OSV: https://osv.dev/vulnerability/CVE-2026-93339

---
From sbomify Insights: https://insights.sbomify.com/CVE-2026-93339/
Summaries are generated and may contain mistakes; the official description above is the record.