CVE-2025-5591 | BDVDB-2026-309043 Detail

KenticoKentico Xperience

Description#

Kentico Xperience 13 is vulnerable to a stored cross-site scripting attack via a form component, allowing an attacker to hijack a victim user’s session and perform actions in their security context.

Impact#

CAPEC-593 Session Hijacking

Weaknesses#

CWE-79 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
CWE-1188 Insecure Default Initialization of Resource

References#

https://www.themissinglink.com.au/security-advisories/cve-2025-5591

Exploit#

No public exploit known

History#

Version 12026-01-05Record published in the CVE List.

Published

Published: 2026-01-05
Last modified: 2026-01-05

Vendor information

Vendor: Kentico
Product: Kentico Xperience

All Kentico vulnerabilities

Score

7.7 High

EPSS

less than 1%, Very Low

Estimated chance of exploitation in the next 30 days. EPSS percentile: 6.8.

KEV

Not listed in the CISA Known Exploited Vulnerabilities catalog.

Impact

Cross-Site Scripting

Action

No specific action is recorded in the source data. Check the references for vendor guidance.

Affected Systems

Vulnerable
13.0.167
Fixed
Not stated

Scoring System

CVSS v4.0

7.7 High

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:U

Metric breakdown
Attack Vector	Network
Attack Complexity	Low
Attack Requirements	None
Privileges Required	None
User Interaction	Passive
Vulnerable System Confidentiality	High
Vulnerable System Integrity	High
Vulnerable System Availability	High
Subsequent System Confidentiality	High
Subsequent System Integrity	High
Subsequent System Availability	High

CVSS v3.1

Not available

CVSS v3.0

Not available

CVSS v2

Not available

Source: CVE List v5 (record); CISA KEV (kev, action); FIRST EPSS (epss).