CVE-2026-8315: Stored XSS in Webbeyaz's Mediküm Web

Severity: medium (CVSS 5.4 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.2% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2026-07-08 · updated 2026-10-25
Weakness: CWE-79

Description

Improper neutralization of input during web page generation ('cross-site scripting') vulnerability in Webbeyaz Web Design Mediküm Web allows Stored XSS. This issue affects Mediküm Web: through 08072026. NOTE: The vendor was contacted and it was learned that the product is not supported.

Affected products

Webbeyaz Web Design Mediküm Web: through 08072026

References

https://siberguvenlik.gov.tr/guvenlik-bildirimleri/detay/tr-26-0518

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