# CVE-2026-18469: Login & Register Forms < 4.0.2 - Unauthenticated Account Takeover via Password Reset Code Brute Force

> Unauthenticated attackers can brute-force password reset codes to take over any account, including administrators, when the verification-code reset mode is enabled.

- **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:** 10 Aug 2026
- **Updated:** 11 Aug 2026
- **Also known as:** GHSA-53xf-4rjw-hxg5

## What is CVE-2026-18469?

CVE-2026-18469 is a high-severity authentication bypass vulnerability in Unknown Login & Register Forms, published on 10 Aug 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

The Login & Register Forms  WordPress plugin before 4.0.2 does not enforce its password reset attempt limit against a server-derived value, keying both the verification code and the per-source attempt counter on client-controlled data, allowing unauthenticated attackers to reset the limit at will and brute-force the code to take over any account, including administrators, when the verification-code reset mode is enabled.

Weakness: CWE-287 (Improper Authentication)

## Which versions are affected by CVE-2026-18469?


## How do I fix CVE-2026-18469?

No fix has been published for CVE-2026-18469 yet. Limit exposure of the affected software until one is available.

## Is CVE-2026-18469 being exploited?

There is no known exploitation of CVE-2026-18469 in the wild and no public exploit code.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-18469 and fix it if it is affected.

What it is: CVE-2026-18469 is a high-severity authentication bypass vulnerability in Unknown Login & Register Forms, published on 10 Aug 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-2026-18469 in the wild and no public exploit code.

Affected product: Unknown Login & Register Forms. 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-2026-18469/ (Markdown: https://insights.sbomify.com/CVE-2026-18469/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-18469
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-18469
- OSV: https://osv.dev/vulnerability/CVE-2026-18469

---
From sbomify Insights: https://insights.sbomify.com/CVE-2026-18469/
Summaries are generated and may contain mistakes; the official description above is the record.