Vulnerability · Published Jul 8, 2026 · Assigned by TR-CERT
CVE-2026-8315Stored XSS in Webbeyaz's Mediküm Web
Medium 5.4
In plain English
A medium-severity cross-site scripting in Mediküm Web from Webbeyaz Web Design. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.2% (higher than 13% of all known vulnerabilities).
Severity (CVSS 3.1)5.4Medium
Exploit odds (30 days)0.2%top 86.6% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official 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 (as reported)
| Vendor | Product | Versions |
|---|---|---|
| Webbeyaz Web Design | Mediküm Web | 0 – through 08072026 |
Weakness: CWE-79 · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
References
- https://siberguvenlik.gov.tr/guvenlik-bildirimleri/detay/tr-26-0518 government-resource