# CVE-2026-27390: WordPress WeDesignTech Ultimate Booking Addon plugin <= 1.0.1 - Account Takeover vulnerability

> Attackers can bypass authentication to take over accounts in the WeDesignTech Ultimate Booking Addon WordPress plugin.

- **Severity:** High 8.8 (`CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H`)
- **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:** 5 Mar 2026
- **Updated:** 28 Apr 2026
- **Also known as:** GHSA-fmgj-x956-32c7

## What is CVE-2026-27390?

CVE-2026-27390 is a high-severity authentication bypass vulnerability in designthemes WeDesignTech Ultimate Booking Addon, published on 5 Mar 2026. Any signed-in user can exploit it over the network, with no action from the victim.

### Official description

Authentication Bypass Using an Alternate Path or Channel vulnerability in designthemes WeDesignTech Ultimate Booking Addon wedesigntech-ultimate-booking-addon allows Authentication Abuse.This issue affects WeDesignTech Ultimate Booking Addon: from n/a through <= 1.0.1.

Weakness: CWE-288 (Authentication Bypass Using an Alternate Path or Channel)

## Which versions are affected by CVE-2026-27390?


## How do I fix CVE-2026-27390?

No fix has been published for CVE-2026-27390 yet. Limit exposure of the affected software until one is available.

## Is CVE-2026-27390 being exploited?

There is no known exploitation of CVE-2026-27390 in the wild and no public exploit code.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-27390 and fix it if it is affected.

What it is: CVE-2026-27390 is a high-severity authentication bypass vulnerability in designthemes WeDesignTech Ultimate Booking Addon, published on 5 Mar 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-2026-27390 in the wild and no public exploit code.

Affected product: designthemes WeDesignTech Ultimate Booking Addon. 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-2026-27390/ (Markdown: https://insights.sbomify.com/CVE-2026-27390/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-27390
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-27390
- OSV: https://osv.dev/vulnerability/CVE-2026-27390

---
From sbomify Insights: https://insights.sbomify.com/CVE-2026-27390/
Summaries are generated and may contain mistakes; the official description above is the record.