# CVE-2021-48008: Chanjet CRM SQL Injection via get_usedspace.php

> Remote attackers can execute arbitrary SQL queries via the site_id parameter to extract sensitive database information from Chanjet CRM.

- **Severity:** High 8.7 (`CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 18 Sep 2026
- **Updated:** 21 Sep 2026
- **Also known as:** GHSA-x5gc-r7qf-2h87

## What is CVE-2021-48008?

CVE-2021-48008 is a high-severity SQL injection vulnerability in Chanjet Information Technology Co., Ltd. CRM, published on 18 Sep 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

Chanjet CRM contains an unauthenticated SQL injection vulnerability that allows remote attackers to execute arbitrary SQL queries by manipulating the site_id GET parameter in the webservice endpoint. Attackers can exploit the lack of input sanitization or parameterization through UNION-based injection techniques to extract sensitive data from the underlying database. Exploitation evidence was first observed by the Shadowserver Foundation on 2023-10-18.

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

## Which versions are affected by CVE-2021-48008?


## How do I fix CVE-2021-48008?

No fix has been published for CVE-2021-48008 yet. Limit exposure of the affected software until one is available.

## Is CVE-2021-48008 being exploited?

There is no known exploitation of CVE-2021-48008 in the wild and no public exploit code.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2021-48008 and fix it if it is affected.

What it is: CVE-2021-48008 is a high-severity SQL injection vulnerability in Chanjet Information Technology Co., Ltd. CRM, published on 18 Sep 2026. 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-2021-48008 in the wild and no public exploit code.

Affected product: Chanjet Information Technology Co., Ltd. CRM. 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-2021-48008/ (Markdown: https://insights.sbomify.com/CVE-2021-48008/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2021-48008
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2021-48008
- OSV: https://osv.dev/vulnerability/CVE-2021-48008

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From sbomify Insights: https://insights.sbomify.com/CVE-2021-48008/
Summaries are generated and may contain mistakes; the official description above is the record.