# CVE-2026-12597: LoginPress Pro <= 6.2.3 - Unauthenticated Authentication Bypass via Unverified OAuth Email via GitHub OAuth Callback

> Unauthenticated attackers can bypass authentication and log in as any user, including administrators, by exploiting unverified email handling in the GitHub OAuth callback.

- **Severity:** High 8.1 (`CVSS:3.1/AV:N/AC:H/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:** 9 Jul 2026
- **Updated:** 10 Jul 2026
- **Also known as:** GHSA-g678-2jj9-7fmj

## What is CVE-2026-12597?

CVE-2026-12597 is a high-severity authentication bypass vulnerability in LoginPress Pro, published on 9 Jul 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

The LoginPress Pro plugin for WordPress is vulnerable to Authentication Bypass via the GitHub OAuth callback in versions up to, and including, 6.2.3. The vulnerability exists in the loginpress_on_github_login() function, which blindly trusts the first element (profile[0]['email']) of the array returned by GitHub's /user/emails endpoint as an account-binding identifier without verifying that the email carries a verified === true status. This makes it possible for unauthenticated attackers to log in as any existing WordPress user, including administrators, by adding an unverified email address matching a local account to their GitHub profile and triggering the OAuth callback via a crafted code parameter — causing the plugin to call get_user_by('email', ...) and establish an authenticated session for the matched account. Practical exploitation is conditional on GitHub returning the attacker-added unverified email at index 0 of the /user/emails response, as GitHub typically prioritizes the primary verified address first; nonetheless, the absence of any email verification check in the plugin constitutes a fundamental authentication bypass flaw.

Weakness: CWE-287 (Improper Authentication)

## Which versions are affected by CVE-2026-12597?


## How do I fix CVE-2026-12597?

No fix has been published for CVE-2026-12597 yet. Limit exposure of the affected software until one is available.

## Is CVE-2026-12597 being exploited?

There is no known exploitation of CVE-2026-12597 in the wild and no public exploit code.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-12597 and fix it if it is affected.

What it is: CVE-2026-12597 is a high-severity authentication bypass vulnerability in LoginPress Pro, published on 9 Jul 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-2026-12597 in the wild and no public exploit code.

Affected product: LoginPress 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-2026-12597/ (Markdown: https://insights.sbomify.com/CVE-2026-12597/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-12597
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-12597
- OSV: https://osv.dev/vulnerability/CVE-2026-12597

---
From sbomify Insights: https://insights.sbomify.com/CVE-2026-12597/
Summaries are generated and may contain mistakes; the official description above is the record.