# CVE-2021-26644: SQL injection in Mangboard WP BASIC

> Remote attackers can execute arbitrary code on the server via SQL injection in the Mangboard bulletin board due to unverified table name inputs.

- **Severity:** High 8.8 (`CVSS:3.1/AV:N/AC:L/PR:N/UI:R/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:** A user has to click or open something
- **Fix available:** No
- **Published:** 20 Jan 2023
- **Updated:** 3 Apr 2025
- **Also known as:** GHSA-2m78-3m48-94h8

## What is CVE-2021-26644?

CVE-2021-26644 is a high-severity SQL injection vulnerability in Hometory Mangboard WP BASIC, published on 20 Jan 2023. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.

### Official description

SQL-Injection vulnerability caused by the lack of verification of input values for the table name of DB used by the Mangboard bulletin board. A remote attacker can use this vulnerability to execute arbitrary code on the server where the bulletin board is running.

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

## Which versions are affected by CVE-2021-26644?

It affects 1 product.


Products: Mangboard Mangboard Wp.

## How do I fix CVE-2021-26644?

No fix has been published for CVE-2021-26644 yet. Limit exposure of the affected software until one is available.

## Is CVE-2021-26644 being exploited?

There is no known exploitation of CVE-2021-26644 in the wild and no public exploit code.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2021-26644 and fix it if it is affected.

What it is: CVE-2021-26644 is a high-severity SQL injection vulnerability in Hometory Mangboard WP BASIC, published on 20 Jan 2023. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Exploitation: There is no known exploitation of CVE-2021-26644 in the wild and no public exploit code.

Affected product: Hometory Mangboard WP BASIC. 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-2021-26644/ (Markdown: https://insights.sbomify.com/CVE-2021-26644/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2021-26644
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2021-26644
- OSV: https://osv.dev/vulnerability/CVE-2021-26644

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From sbomify Insights: https://insights.sbomify.com/CVE-2021-26644/
Summaries are generated and may contain mistakes; the official description above is the record.