# CVE-2026-110135: OTP Login & Register Woocommerce < 2.7.3 - Unauthenticated Account Takeover via OTP Brute Force

> Unauthenticated attackers can bypass OTP rate limits to brute-force login codes and take over user accounts in the OTP Login & Register Woocommerce plugin.

- **Severity:** High 7.4 (`CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 16 Oct 2026
- **Updated:** 16 Oct 2026
- **Also known as:** GHSA-qqhp-9fwp-9wqc

## What is CVE-2026-110135?

CVE-2026-110135 is a high-severity authentication bypass vulnerability in Unknown OTP Login & Register Woocommerce, published on 16 Oct 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

The OTP Login & Register Woocommerce WordPress plugin before 2.7.3 does not adequately limit one-time-password verification attempts, because the attempt limit is tracked against a value the client itself supplies and can change freely, allowing an unauthenticated attacker to bypass the limit and brute-force the short numeric login code to take over an account without its password.

Weakness: CWE-287 (Improper Authentication)

## Which versions are affected by CVE-2026-110135?


## How do I fix CVE-2026-110135?

No fix has been published for CVE-2026-110135 yet. Limit exposure of the affected software until one is available.

## Is CVE-2026-110135 being exploited?

There is no known exploitation of CVE-2026-110135 in the wild and no public exploit code.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-110135 and fix it if it is affected.

What it is: CVE-2026-110135 is a high-severity authentication bypass vulnerability in Unknown OTP Login & Register Woocommerce, published on 16 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-2026-110135 in the wild and no public exploit code.

Affected product: Unknown OTP Login & Register Woocommerce. 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-2026-110135/ (Markdown: https://insights.sbomify.com/CVE-2026-110135/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-110135
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-110135
- OSV: https://osv.dev/vulnerability/CVE-2026-110135

---
From sbomify Insights: https://insights.sbomify.com/CVE-2026-110135/
Summaries are generated and may contain mistakes; the official description above is the record.