# CVE-2023-2636: AN_GradeBook <= 5.0.1 - Subscriber+ SQLi

> Subscribers can exploit SQL injection in AN_GradeBook to read or modify database contents.

- **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:** 17 Jul 2023
- **Updated:** 13 Feb 2025
- **Also known as:** GHSA-g2p4-9q23-3859

## What is CVE-2023-2636?

CVE-2023-2636 is a high-severity SQL injection vulnerability in Unknown AN_GradeBook, published on 17 Jul 2023. Any signed-in user can exploit it over the network, with no action from the victim.

### Official description

The AN_GradeBook WordPress plugin through 5.0.1 does not properly sanitise and escape a parameter before using it in a SQL statement, leading to a SQL injection exploitable by users with a role as low as subscriber

Weakness: CWE-89 (Improper Neutralization of Special Elements used in an SQL Command)

## Which versions are affected by CVE-2023-2636?

It affects 1 product.


Products: An Gradebook Project an Gradebook.

## How do I fix CVE-2023-2636?

No fix has been published for CVE-2023-2636 yet. Limit exposure of the affected software until one is available.

## Is CVE-2023-2636 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2023-2636 exists.

Public exploit code:

- https://github.com/lukinneberg/CVE-2023-2636 (github_poc): https://github.com/lukinneberg/CVE-2023-2636
- WordPress Plugin AN_Gradebook 5.0.1 - SQLi (exploitdb)

## Other vulnerabilities in Unknown AN_GradeBook

- [CVE-2023-2709](https://insights.sbomify.com/CVE-2023-2709/): AN_GradeBook <= 5.0.1 - Admin+ XSS (medium 4.8)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2023-2636 and fix it if it is affected.

What it is: CVE-2023-2636 is a high-severity SQL injection vulnerability in Unknown AN_GradeBook, published on 17 Jul 2023. Any signed-in user can exploit it over the network, with no action from the victim.
Exploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2023-2636 exists.

Affected product: Unknown AN_GradeBook. 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-2023-2636/ (Markdown: https://insights.sbomify.com/CVE-2023-2636/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2023-2636
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2023-2636
- OSV: https://osv.dev/vulnerability/CVE-2023-2636

---
From sbomify Insights: https://insights.sbomify.com/CVE-2023-2636/
Summaries are generated and may contain mistakes; the official description above is the record.