# CVE-2026-109521: girishsaraf Online-Appointment-Booking-System changebookingstatus.php sql injection

> Remote attackers can exploit SQL injection in changebookingstatus.php to read or modify database records in the Online Appointment Booking System.

- **Severity:** Medium 6.9 (`CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 13 Oct 2026
- **Updated:** 13 Oct 2026
- **Also known as:** GHSA-5xp3-74rq-rwc5

## What is CVE-2026-109521?

CVE-2026-109521 is a medium-severity SQL injection vulnerability in girishsaraf Online-Appointment-Booking-System, published on 13 Oct 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

A vulnerability was detected in girishsaraf Online-Appointment-Booking-System up to f427b4757128ca253d33d0cc4e87bbb9c999a4d5. This affects an unknown function of the file changebookingstatus.php. Performing a manipulation of the argument dateselected results in sql injection. The attack may be initiated remotely. The exploit is now public and may be used. This product uses a rolling release model to deliver continuous updates. As a result, specific version information for affected or updated releases is not available. The project was informed of the problem early through an issue report but has not responded yet.

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-2026-109521?


## How do I fix CVE-2026-109521?

No fix has been published for CVE-2026-109521 yet. Limit exposure of the affected software until one is available.

## Is CVE-2026-109521 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-109521 exists.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-109521 and fix it if it is affected.

What it is: CVE-2026-109521 is a medium-severity SQL injection vulnerability in girishsaraf Online-Appointment-Booking-System, published on 13 Oct 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Exploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-109521 exists.

Affected product: girishsaraf Online-Appointment-Booking-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-2026-109521/ (Markdown: https://insights.sbomify.com/CVE-2026-109521/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-109521
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-109521
- OSV: https://osv.dev/vulnerability/CVE-2026-109521

---
From sbomify Insights: https://insights.sbomify.com/CVE-2026-109521/
Summaries are generated and may contain mistakes; the official description above is the record.