# CVE-2026-88756: Pagekit CMS SQL injection in user authentication

Source: https://junglewise.ai/threats/cve-2026-88756-pagekit-cms-1-0-18-allows-an-unauthenticated-attacker-to-perform  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-09-21. Updated: 2026-09-26  
License: CC BY 4.0 with a link back

CVE-2026-88756 · Severity: medium · CVSS 5.3 · Published 2026-09-21

Pagekit CMS is a content management system used to build and manage websites. An unauthenticated attacker can exploit a SQL injection vulnerability in the login endpoint to bypass authentication and gain unauthorized access to the CMS. This could allow an attacker to take over the website, modify content, or steal sensitive data stored in the database.

Technologies: [Pagekit CMS](https://junglewise.ai/threats/technologies/pagekit-cms). Vendors: [Pagekit](https://junglewise.ai/threats/vendors/pagekit).

## Quick answers

**Is CVE-2026-88756 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-88756 being exploited in the wild.

**How severe is CVE-2026-88756?** Medium severity, with a CVSS score of 5.3, published 21 September 2026.

**Which products and versions are affected?** Pagekit CMS <= 1.0.18.

**Is there a fix for CVE-2026-88756?** No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.

**How is CVE-2026-88756 attacked?** It is attacked over the network.

**Am I affected by CVE-2026-88756?** Check whether you run Pagekit CMS at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

## Technical details

The vulnerability exists in the user authentication endpoint (POST /user/authenticate) where the credentials array parameter is not properly sanitized before being used in SQL queries. An unauthenticated attacker can inject malicious SQL code through the credentials submission to manipulate database queries. Successful exploitation allows authentication bypass and database access without valid credentials.

## Affected products

- Pagekit Pagekit CMS <= 1.0.18

## Timeline

- 2026-09-21: disclosed

## References

- [https://github.com/Miniko233/Pagekit-CMS-vulnerable-to-SQL-Injection-in-user-authentication](https://github.com/Miniko233/Pagekit-CMS-vulnerable-to-SQL-Injection-in-user-authentication)
- [https://github.com/pagekit/pagekit](https://github.com/pagekit/pagekit)

## Related threats

- [Pagekit CMS password reset vulnerability in debug toolbar](https://junglewise.ai/threats/cve-2017-5594-pagekit-cms-password-reset-vulnerability-in-debug-toolbar)