# CVE-2026-30881: Chamilo LMS: SQL Injection in the statistics AJAX endpoint

> An authenticated attacker can inject arbitrary SQL into the statistics endpoint to extract data from the database.

- **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:** 16 Mar 2026
- **Updated:** 16 Mar 2026
- **Also known as:** GHSA-5ggx-x2cv-4h44

## What is CVE-2026-30881?

CVE-2026-30881 is a high-severity SQL injection vulnerability in Chamilo Chamilo Lms, published on 16 Mar 2026. Any signed-in user can exploit it over the network, with no action from the victim.

### Official description

Chamilo LMS is a learning management system. Version 1.11.34 and prior contains a SQL Injection vulnerability in the statistics AJAX endpoint. The parameters date_start and date_end from $_REQUEST are embedded directly into a raw SQL string without proper sanitization. Although Database::escape_string() is called downstream, its output is immediately neutralized by str_replace("\'", "'", ...), which restores any injected single quotes — effectively bypassing the escaping mechanism entirely. This allows an authenticated attacker to inject arbitrary SQL statements into the database query, enabling blind time-based and conditional data extraction. This issue has been patched in version 1.11.36.

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

## Which versions are affected by CVE-2026-30881?

It affects 1 product.


Products: Chamilo Chamilo Lms.

## How do I fix CVE-2026-30881?

No fix has been published for CVE-2026-30881 yet. Limit exposure of the affected software until one is available.

## Is CVE-2026-30881 being exploited?

There is no known exploitation of CVE-2026-30881 in the wild and no public exploit code.

## Other vulnerabilities in Chamilo Chamilo Lms

- [CVE-2025-50187](https://insights.sbomify.com/CVE-2025-50187/): Chamilo: Evaluation of untrusted user input leads to Remote Code Execution (critical 9.8)
- [CVE-2023-34944](https://insights.sbomify.com/CVE-2023-34944/): File upload in n/a (critical 9.8)
- [CVE-2022-27423](https://insights.sbomify.com/CVE-2022-27423/): SQL injection in n/a (critical 9.8)
- [CVE-2021-35414](https://insights.sbomify.com/CVE-2021-35414/): SQL injection in n/a (critical 9.8)
- [CVE-2019-13082](https://insights.sbomify.com/CVE-2019-13082/): File upload in n/a (critical 9.8)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-30881 and fix it if it is affected.

What it is: CVE-2026-30881 is a high-severity SQL injection vulnerability in Chamilo Chamilo Lms, published on 16 Mar 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2026-30881 in the wild and no public exploit code.

Affected product: Chamilo Chamilo Lms. 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-2026-30881/ (Markdown: https://insights.sbomify.com/CVE-2026-30881/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-30881
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-30881
- OSV: https://osv.dev/vulnerability/CVE-2026-30881

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From sbomify Insights: https://insights.sbomify.com/CVE-2026-30881/
Summaries are generated and may contain mistakes; the official description above is the record.