# CVE-2026-2127: Missing authorization in SiteOrigin Widgets Bundle

> Authenticated subscribers can execute arbitrary shortcodes due to missing capability checks in the SiteOrigin Widgets Bundle plugin.

- **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:** 18 Feb 2026
- **Updated:** 8 Apr 2026
- **Also known as:** GHSA-6mq9-qm49-w244

## What is CVE-2026-2127?

CVE-2026-2127 is a medium-severity missing authorization vulnerability in gpriday SiteOrigin Widgets Bundle, published on 18 Feb 2026. Any signed-in user can exploit it over the network, with no action from the victim.

### Official description

The SiteOrigin Widgets Bundle plugin for WordPress is vulnerable to unauthorized arbitrary shortcode execution in all versions up to, and including, 1.70.4. This is due to a missing capability check on the `siteorigin_widget_preview_widget_action()` function which is registered via the `wp_ajax_so_widgets_preview` AJAX action. The function only verifies a nonce (`widgets_action`) but does not check user capabilities. This makes it possible for authenticated attackers, with Subscriber-level access and above, to execute arbitrary shortcodes by invoking the `SiteOrigin_Widget_Editor_Widget` via the preview endpoint. The required nonce is exposed on the public frontend when the Post Carousel widget is present on a page, embedded in the `data-ajax-url` HTML attribute.

Weakness: CWE-862 (Missing Authorization)

## Which versions are affected by CVE-2026-2127?


## How do I fix CVE-2026-2127?

No fix has been published for CVE-2026-2127 yet. Limit exposure of the affected software until one is available.

## Is CVE-2026-2127 being exploited?

There is no known exploitation of CVE-2026-2127 in the wild and no public exploit code.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-2127 and fix it if it is affected.

What it is: CVE-2026-2127 is a medium-severity missing authorization vulnerability in gpriday SiteOrigin Widgets Bundle, published on 18 Feb 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-2026-2127 in the wild and no public exploit code.

Affected product: gpriday SiteOrigin Widgets Bundle. 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-2026-2127/ (Markdown: https://insights.sbomify.com/CVE-2026-2127/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-2127
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-2127
- OSV: https://osv.dev/vulnerability/CVE-2026-2127

---
From sbomify Insights: https://insights.sbomify.com/CVE-2026-2127/
Summaries are generated and may contain mistakes; the official description above is the record.