CVE-2023-0320Network attack vector

Browser script execution via stored input

Published Mar 20, 2023 · Updated Jun 1, 2026

Stored XSS in İzmir Kâtip Çelebi Üniversitesi ÜBYS before 23.03.16 allows remote authenticated users to execute script in a victim's browser. The CNA identifies persistent script injection but does not disclose the affected page, input, storage path, or missing neutralization operation. Low-privileged access and a victim viewing the stored content are required; successful exploitation can read or modify data available to that browser session.

CVSS severity5.4
Medium
EPSS probability0.34%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Stored XSS in İzmir Kâtip Çelebi Üniversitesi ÜBYS before 23.03.16 allows remote authenticated users to execute script in a victim's browser. The CNA identifies persistent script injection but does not disclose the affected page, input, storage path, or missing neutralization operation. Low-privileged access and a victim viewing the stored content are required; successful exploitation can read or modify data available to that browser session.

The record

CVE
CVE-2023-0320
Published
Mar 20, 2023
Updated
Jun 1, 2026
Vendor
İzmir Kâtip Çelebi Üniversitesi
Product
Üniversite Bilgi Yönetim Sistemi (ÜBYS)
Classifications
CWE-79, CAPEC-592, T1059.007
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Mar 20, 2023CVE publishedPublication date reported by the CVE source.
  2. Jun 1, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=0 <23.03.16

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

İzmir Kâtip Çelebi Üniversitesi · Üniversite Bilgi Yönetim Sistemi (ÜBYS)version=0 <23.03.16

Published CVSS scores

5.4TR-CERTCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
CAPEC-592Stored XSS
T1059.007JavaScript/JScript

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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