# CVE-2026-103690: itsourcecode Leave Management System controller.php sql injection

> Remote attackers can exploit SQL injection in the Leave Management System via the LEAVEID parameter to read or modify database contents.

- **Severity:** Medium 5.3 (`CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P`)
- **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:** 1 Oct 2026
- **Updated:** 1 Oct 2026
- **Also known as:** GHSA-jr22-m5v5-43r9

## What is CVE-2026-103690?

CVE-2026-103690 is a medium-severity SQL injection vulnerability in itsourcecode Leave Management System, published on 1 Oct 2026. Any signed-in user can exploit it over the network, with no action from the victim.

### Official description

A flaw has been found in itsourcecode Leave Management System 1.0. This vulnerability affects unknown code of the file /module/leave/controller.php. Executing a manipulation of the argument LEAVEID can lead to sql injection. The attack may be performed from remote. The exploit has been published and may be used.

Weakness: CWE-89 (Improper Neutralization of Special Elements used in an SQL Command), CWE-74 (Improper Neutralization of Special Elements in Output Used by a Downstream Component)

## Which versions are affected by CVE-2026-103690?


## How do I fix CVE-2026-103690?

No fix has been published for CVE-2026-103690 yet. Limit exposure of the affected software until one is available.

## Is CVE-2026-103690 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-103690 exists.

Public exploit code:

- SQL injection (CWE-89) in itsourcecode Leave Management System 1.0 - CVE-2026-103690 / VulDB VDB-412559 (github_poc): https://github.com/Masuer-mengxing/CVE-2026-103690

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-103690 and fix it if it is affected.

What it is: CVE-2026-103690 is a medium-severity SQL injection vulnerability in itsourcecode Leave Management System, published on 1 Oct 2026. 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-2026-103690 exists.

Affected product: itsourcecode Leave Management System. 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-2026-103690/ (Markdown: https://insights.sbomify.com/CVE-2026-103690/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-103690
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-103690
- OSV: https://osv.dev/vulnerability/CVE-2026-103690

---
From sbomify Insights: https://insights.sbomify.com/CVE-2026-103690/
Summaries are generated and may contain mistakes; the official description above is the record.