CVE-2026-3251 PUBLISHED

XSS in Webremium's Mezunum Satiyorum

Assigner: TR-CERT
Reserved: 26.02.2026 Published: 10.07.2026 Updated: 10.07.2026

Improper neutralization of input during web page generation ('cross-site scripting') vulnerability in Webremium Istanbul Web Design Mezunum Satiyorum allows Stored XSS.

This issue affects Mezunum Satiyorum: from 1.2.504 through 10072026. NOTE: The vendor was contacted early about this disclosure but did not respond in any way.

Metrics

CVSS 3.1

CVSS Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N
CVSS Score: 6.4

Attack Vector	Network	Scope	Changed
Attack Complexity	Low	Confidentiality Impact	Low
Privileges Required	Low	Integrity Impact	Low
User Interaction	None	Availability Impact	None

CVSS 3.1

Product Status

Vendor	Webremium Istanbul Web Design
Product	Mezunum Satiyorum
Versions	Default: unknown affected from 1.2.504 to 10072026 (incl.)

Credits

Onurcan GENÇ finder

References

https://siberguvenlik.gov.tr/guvenlik-bildirimleri/detay/tr-26-0525

Problem Types

CWE-79 Improper neutralization of input during web page generation ('cross-site scripting') CWE

Impacts

CAPEC-592 Stored XSS