# CVE-2021-24917: WPS Hide Login < 1.9.1 - Protection Bypass with Referer-Header

> Unauthenticated attackers can bypass login protection and access the admin options page by manipulating the Referer header.

- **Severity:** High 7.5 (`CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/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:** 6 Dec 2021
- **Updated:** 3 Aug 2024
- **Also known as:** GHSA-4qm3-4v98-g42c

## What is CVE-2021-24917?

CVE-2021-24917 is a high-severity authentication bypass vulnerability in Unknown WPS Hide Login, published on 6 Dec 2021. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

The WPS Hide Login WordPress plugin before 1.9.1 has a bug which allows to get the secret login page by setting a random referer string and making a request to /wp-admin/options.php as an unauthenticated user.

Weakness: CWE-863 (Incorrect Authorization)

## Which versions are affected by CVE-2021-24917?

It affects 1 product.


Products: Wpserveur Wps Hide Login.

## How do I fix CVE-2021-24917?

No fix has been published for CVE-2021-24917 yet. Limit exposure of the affected software until one is available.

## Is CVE-2021-24917 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2021-24917 exists.

Public exploit code:

- WordPress WPS Hide Login <1.9.1 - Information Disclosure (github_poc): https://github.com/Cappricio-Securities/CVE-2021-24917
- CVE-2021-24917  (github_poc): https://github.com/buildwithlian/CVE-2021-24917
- WordPress WPS Hide Login Login Page Revealer (metasploit)
- WordPress WPS Hide Login <1.9.1 - Information Disclosure (nuclei): http/cves/2021/CVE-2021-24917.yaml

## Other vulnerabilities in Unknown WPS Hide Login

- [CVE-2019-15823](https://insights.sbomify.com/CVE-2019-15823/): Security feature bypass in n/a (critical 9.8)
- [CVE-2019-15824](https://insights.sbomify.com/CVE-2019-15824/): Auth bypass in n/a (critical 9.8)
- [CVE-2019-15825](https://insights.sbomify.com/CVE-2019-15825/): Auth bypass in n/a (critical 9.8)
- [CVE-2019-15826](https://insights.sbomify.com/CVE-2019-15826/): Security feature bypass in n/a (critical 9.8)
- [CVE-2015-9498](https://insights.sbomify.com/CVE-2015-9498/): Cross-site request forgery in n/a (high 8.8)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2021-24917 and fix it if it is affected.

What it is: CVE-2021-24917 is a high-severity authentication bypass vulnerability in Unknown WPS Hide Login, published on 6 Dec 2021. An attacker can exploit it over the internet without logging in, with no action from the victim.
Exploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2021-24917 exists.

Affected product: Unknown WPS Hide Login. 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-2021-24917/ (Markdown: https://insights.sbomify.com/CVE-2021-24917/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2021-24917
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2021-24917
- OSV: https://osv.dev/vulnerability/CVE-2021-24917

---
From sbomify Insights: https://insights.sbomify.com/CVE-2021-24917/
Summaries are generated and may contain mistakes; the official description above is the record.