CVE-2025-5591
Stored Cross-site Scripting (XSS) in Kentico Xperience 13
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.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- None
- User interaction
- Passive
What an attacker can affect
- Confidentiality
- High
- Integrity
- High
- Availability
- High
Exploit likelihood
What each source reports
CVE List Score used
Stored Cross-site Scripting (XSS) in Kentico Xperience 13
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.
- Record
CVE-2025-5591- CVSS 4.0
- 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 - Weakness
- CWE-79, CWE-1188
- Updated
- 2026-11-02
EUVDEUVD-2026-0919
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.
- Record
EUVD-2026-0919- CVSS 4.0
- 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 - Updated
- 2026-11-02
GitHub AdvisoriesGHSA-8f4c-27f5-j68q
Kentico Xperience 13 is vulnerable to a stored cross-site scripting attack via a form component,...
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.
- Record
GHSA-8f4c-27f5-j68q- CVSS 4.0
- 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/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X - CVSS 3.1
- 5.4 Medium
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N - Weakness
- CWE-79
- Updated
- 2026-11-02
NVD
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.
- Record
CVE-2025-5591- CVSS 4.0
- 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/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X - CVSS 3.1
- 5.4 Medium
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N - Weakness
- CWE-79, CWE-1188
- Updated
- 2026-11-02
Affected products
History
| Recorded | Changed | Sources |
|---|---|---|
| first indexed | CVE List, EUVD, GitHub Advisories, NVD |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2025-5591 is a high vulnerability (CVSS 7.7) in Kentico Xperience, published January 5, 2026. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.17%, the 6th percentile. No source names a fixed version.