# CVE-2026-8315: Webbeyaz Web Design Mediküm Web stored XSS

Source: https://junglewise.ai/threats/cve-2026-8315-webbeyaz-web-design-medikum-web-stored-xss  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-07-08. Updated: 2026-07-08  
License: CC BY 4.0 with a link back

CVE-2026-8315 · Severity: medium · CVSS 5.4 · Published 2026-07-08

Mediküm Web, a web application developed by Webbeyaz Web Design, contains a security flaw that allows attackers to inject malicious scripts into the website. If a user views a page containing this malicious content, the attacker could potentially steal session information or perform unauthorized actions on the user's behalf. The vendor has stated that this product is no longer supported, meaning no official security updates will be released.

Technologies: [Webbeyaz Web Design Mediküm Web](https://junglewise.ai/threats/technologies/medik-m-web). Vendors: [Webbeyaz Web Design](https://junglewise.ai/threats/vendors/webbeyaz-web-design).

## Quick answers

**Is CVE-2026-8315 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-8315 being exploited in the wild.

**How severe is CVE-2026-8315?** Medium severity, with a CVSS score of 5.4, published 8 July 2026.

**Which products and versions are affected?** Webbeyaz Web Design Mediküm Web through 08072026.

**Is there a fix for CVE-2026-8315?** 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-2026-8315 attacked?** It is attacked over the network, in a web application.

**Am I affected by CVE-2026-8315?** Check whether you run Webbeyaz Web Design Mediküm Web 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

A Stored Cross-Site Scripting (XSS) vulnerability exists in Webbeyaz Web Design Mediküm Web through version 08072026. The root cause is the improper neutralization of user-supplied input during web page generation (CWE-79). An authenticated attacker with low privileges can inject malicious scripts into the application's database, which are then executed in the browser of any user who views the affected page. The attack requires network connectivity and minimal user interaction. The vendor has confirmed the product is End-of-Life (EOL) and no patch is expected.

## Affected products

- Webbeyaz Web Design Mediküm Web through 08072026

## Timeline

- 2026-07-08: advisory: Advisory published by TR-CERT and NVD
- 2026-07-08: other: Vendor confirmed product is no longer supported

## References

- [https://siberguvenlik.gov.tr/guvenlik-bildirimleri/detay/tr-26-0518](https://siberguvenlik.gov.tr/guvenlik-bildirimleri/detay/tr-26-0518)

## Related threats

- [Webbeyaz Mediküm Web Reflected XSS](https://junglewise.ai/threats/cve-2026-8310-webbeyaz-medikum-web-reflected-xss)
- [Webbeyaz Mediküm Web SQL injection](https://junglewise.ai/threats/cve-2026-8307-webbeyaz-medikum-web-sql-injection)