# CVE-2023-5311: WP EXtra <= 6.2 - Missing Authorization to .htaccess File Modification

> Authenticated subscribers can modify .htaccess files to achieve remote code execution due to missing capability checks in the WP EXtra plugin.

- **Severity:** High 8.8 (`CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H`)
- **Exploited in the wild:** Not known
- **Login needed:** Any signed-in user
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 25 Oct 2023
- **Updated:** 8 Apr 2026
- **Also known as:** GHSA-p3gw-wp5c-9ccx

## What is CVE-2023-5311?

CVE-2023-5311 is a high-severity missing authorization vulnerability in wpvncom WP EXtra – One Click Optimize, published on 25 Oct 2023. Any signed-in user can exploit it over the network, with no action from the victim.

### Official description

The WP EXtra plugin for WordPress is vulnerable to unauthorized modification of data due to a missing capability check on the register() function in versions up to, and including, 6.2. This makes it possible for authenticated attackers, with subscriber-level permissions and above, to modify the contents of the .htaccess files located in a site's root directory or /wp-content and /wp-includes folders and achieve remote code execution. CVE-2023-46623 appears to be a duplicate of this issue.

Weakness: CWE-862 (Missing Authorization)

## Which versions are affected by CVE-2023-5311?

It affects 1 product.


Products: Wpvnteam Wp Extra.

## How do I fix CVE-2023-5311?

No fix has been published for CVE-2023-5311 yet. Limit exposure of the affected software until one is available.

## Is CVE-2023-5311 being exploited?

There is no known exploitation of CVE-2023-5311 in the wild and no public exploit code.

## Other vulnerabilities in wpvncom WP EXtra – One Click Optimize

- [CVE-2023-46623](https://insights.sbomify.com/CVE-2023-46623/): WordPress WP EXtra Plugin <= 6.2 is vulnerable to Remote Code Execution (RCE) (critical 9.9)
- [CVE-2023-46212](https://insights.sbomify.com/CVE-2023-46212/): WordPress WP EXtra Plugin <= 6.2 is vulnerable to Broken Access Control (medium 6.3)
- [CVE-2023-47825](https://insights.sbomify.com/CVE-2023-47825/): WordPress WP EXtra Plugin <= 6.4 is vulnerable to Cross Site Request Forgery (CSRF) (medium 4.3)
- [CVE-2023-5314](https://insights.sbomify.com/CVE-2023-5314/): WP EXtra <= 6.2 - Missing Authorization to Arbitrary Email Sending (medium 4.3)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2023-5311 and fix it if it is affected.

What it is: CVE-2023-5311 is a high-severity missing authorization vulnerability in wpvncom WP EXtra – One Click Optimize, published on 25 Oct 2023. Any signed-in user can exploit it over the network, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2023-5311 in the wild and no public exploit code.

Affected product: wpvncom WP EXtra – One Click Optimize. 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-2023-5311/ (Markdown: https://insights.sbomify.com/CVE-2023-5311/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2023-5311
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2023-5311
- OSV: https://osv.dev/vulnerability/CVE-2023-5311

---
From sbomify Insights: https://insights.sbomify.com/CVE-2023-5311/
Summaries are generated and may contain mistakes; the official description above is the record.