# CVE-2021-26830: SQL Injection in tribalsystems/zenario

> Remote attackers can exploit SQL injection in Zenario CMS to access the database or delete plugins via the ID input field.

- **Severity:** Critical 9.1 (`CVSS:3.1/AV:N/AC:L/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:** Yes
- **Published:** 16 Apr 2021
- **Updated:** 3 Aug 2024
- **Also known as:** GHSA-w4f3-7f7c-x652

## What is CVE-2021-26830?

CVE-2021-26830 is a critical SQL injection vulnerability in n/a, published on 16 Apr 2021. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

SQL Injection in Tribalsystems Zenario CMS 8.8.52729 allows remote attackers to access the database or delete the plugin. This is accomplished via the `ID` input field of ajax.php in the `Pugin library - delete` module.

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

## Which versions are affected by CVE-2021-26830?

2 open source packages ship an affected version, including tribalsystems/zenario. It affects 1 product.


| Package | Ecosystem | Affected | Fixed in |
| --- | --- | --- | --- |
| `tribalsystems/zenario` | Packagist | All versions | 8.8.53370 |
| `tribalsystems/zenario` | Packagist | All versions | 8.8.53370 |

Products: Tribalsystems Zenario.

## How do I fix CVE-2021-26830?

Upgrade tribalsystems/zenario to 8.8.53370 or later.

## Is CVE-2021-26830 being exploited?

There is no known exploitation of CVE-2021-26830 in the wild and no public exploit code.

Public exploit code:

- Zenario CMS 8.8.53370 - 'id' Blind SQL Injection (exploitdb)

## Other vulnerabilities in n/a

- [CVE-2022-44136](https://insights.sbomify.com/CVE-2022-44136/): Zenario CMS is vulnerable to Remote Code Execution (RCE). (critical 9.8)
- [CVE-2018-18420](https://insights.sbomify.com/CVE-2018-18420/): Zenario CMS vulnerable to CSRF (high 8.8)
- [CVE-2018-5960](https://insights.sbomify.com/CVE-2018-5960/): SQL Injection in Zenario 7.1-7.6 (high 8.8)
- [CVE-2021-42171](https://insights.sbomify.com/CVE-2021-42171/): Unrestricted Upload of File with Dangerous Type in Zenario CMS (high 7.2)
- [CVE-2022-23043](https://insights.sbomify.com/CVE-2022-23043/): File upload restriction bypass in Zenario CMS (high 7.2)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2021-26830 and fix it if it is affected.

What it is: CVE-2021-26830 is a critical SQL injection vulnerability in n/a, published on 16 Apr 2021. 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-2021-26830 in the wild and no public exploit code.

Affected packages and fixed versions:
- tribalsystems/zenario (Packagist): affected all versions; fixed in 8.8.53370
- tribalsystems/zenario (Packagist): affected all versions; fixed in 8.8.53370

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-2021-26830/ (Markdown: https://insights.sbomify.com/CVE-2021-26830/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2021-26830
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2021-26830
- OSV: https://osv.dev/vulnerability/CVE-2021-26830

---
From sbomify Insights: https://insights.sbomify.com/CVE-2021-26830/
Summaries are generated and may contain mistakes; the official description above is the record.