# CVE-2026-102291: Code injection in Kirki – Freeform Page Builder, Website Builder & Customizer

> Authenticated subscribers can execute arbitrary shortcodes via display_name, potentially affecting all visitors on pages using Kirki dynamic content.

- **Severity:** Medium 5.4 (`CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N`)
- **Exploited in the wild:** Not known
- **Login needed:** Any signed-in user
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 10 Oct 2026
- **Updated:** 11 Oct 2026
- **Also known as:** GHSA-v9xh-p885-r83g

## What is CVE-2026-102291?

CVE-2026-102291 is a medium-severity code injection vulnerability in themeum Kirki – Freeform Page Builder, Website Builder & Customizer, published on 10 Oct 2026. Any signed-in user can exploit it over the network, with no action from the victim.

### Official description

The Kirki – Freeform Page Builder, Website Builder & Customizer plugin for WordPress is vulnerable to arbitrary shortcode execution in all versions up to, and including, 6.3.1 This is due to the plugin substituting a user's `display_name` into the composed page markup unfiltered and then running the whole result through `do_shortcode()` in `TheFrontend::replace_content()`. Because `display_name` is writable by any user on their own account through the core profile form, this makes it possible for authenticated attackers with Subscriber-level access and above to execute arbitrary shortcodes. Where the page is a users collection — an ordinary team or member-directory page — the shortcode runs in the request of every visitor, including unauthenticated ones. Requires a published page with a Kirki element whose dynamic content is bound to the `display_name` user field.

Weakness: CWE-74 (Improper Neutralization of Special Elements in Output Used by a Downstream Component)

## Which versions are affected by CVE-2026-102291?


## How do I fix CVE-2026-102291?

No fix has been published for CVE-2026-102291 yet. Limit exposure of the affected software until one is available.

## Is CVE-2026-102291 being exploited?

There is no known exploitation of CVE-2026-102291 in the wild and no public exploit code.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-102291 and fix it if it is affected.

What it is: CVE-2026-102291 is a medium-severity code injection vulnerability in themeum Kirki – Freeform Page Builder, Website Builder & Customizer, published on 10 Oct 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2026-102291 in the wild and no public exploit code.

Affected product: themeum Kirki – Freeform Page Builder, Website Builder & Customizer. 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-2026-102291/ (Markdown: https://insights.sbomify.com/CVE-2026-102291/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-102291
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-102291
- OSV: https://osv.dev/vulnerability/CVE-2026-102291

---
From sbomify Insights: https://insights.sbomify.com/CVE-2026-102291/
Summaries are generated and may contain mistakes; the official description above is the record.