# CVE-2026-14378: Auth bypass in DevKit Pro

> Unauthenticated attackers can bypass authentication and gain administrator access by manipulating a cookie to trigger a session switch, leading to full site takeover.

- **Severity:** Critical 9.8 (`CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 2 Oct 2026
- **Updated:** 3 Oct 2026
- **Also known as:** GHSA-xwfv-9j83-wfj7

## What is CVE-2026-14378?

CVE-2026-14378 is a critical authentication bypass vulnerability in dplugins DevKit Pro, published on 2 Oct 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

The DevKit Pro plugin for WordPress is vulnerable to Authentication Bypass Leading to Administrator Account Takeover in all versions up to, and including, 2.3.0 This is due to the `revert_switch` handler trusting the attacker-controlled `original_user_id` cookie as the privileged identity: `verify_nonce_and_capability()` incorrectly checks the `manage_options` capability on the user identified by the cookie rather than on the actual requester via `current_user_can()`, while the switch-back form and a valid session-bound nonce are emitted publicly via `wp_footer` to any visitor — including unauthenticated users — whenever that cookie is present. This makes it possible for unauthenticated attackers to set the `original_user_id` cookie to any administrator's user ID, collect the rendered nonce, and POST it back to the `revert_switch` handler, causing `wp_set_auth_cookie()` to be called with the administrator's ID and granting the attacker a full administrator-level authenticated session and complete site takeover.

Weakness: CWE-287 (Improper Authentication)

## Which versions are affected by CVE-2026-14378?


## How do I fix CVE-2026-14378?

No fix has been published for CVE-2026-14378 yet. Limit exposure of the affected software until one is available.

## Is CVE-2026-14378 being exploited?

There is no known exploitation of CVE-2026-14378 in the wild and no public exploit code.

Public exploit code:

- PoC for CVE-2026-14378: DevKit Pro ≤2.3.0 unauthenticated admin takeover via original_user_id cookie + revert_switch nonce. check/admin + mass scan. (github_poc): https://github.com/murrez/CVE-2026-14378
- Defensive analysis, patch breakdown, and detection scanner for CVE-2026-14378 (WordPress DevKit Pro Plugin <= 2.3.0). (github_poc): https://github.com/anoxhunterdump-ctrl/CVE-2026-14378-DevKit-Pro-Auth-Bypass

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-14378 and fix it if it is affected.

What it is: CVE-2026-14378 is a critical authentication bypass vulnerability in dplugins DevKit Pro, published on 2 Oct 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2026-14378 in the wild and no public exploit code.

Affected product: dplugins DevKit Pro. 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-2026-14378/ (Markdown: https://insights.sbomify.com/CVE-2026-14378/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-14378
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-14378
- OSV: https://osv.dev/vulnerability/CVE-2026-14378

---
From sbomify Insights: https://insights.sbomify.com/CVE-2026-14378/
Summaries are generated and may contain mistakes; the official description above is the record.