CVE-2025-43818

Liferay Portal vulnerable to cross-site scripting in the Calendar widget

4.8 MediumFix available

Cross-site scripting (XSS) vulnerability in the Calendar widget in Liferay Portal 7.4.3.35 through 7.4.3.110, and Liferay DXP 2023.Q4.0 through 2023.Q4.4, 2023.Q3.1 through 2023.Q3.6, 7.4 update 35 through update 92, and 7.3 update 25 through update 36 allows remote attackers to inject arbitrary web script or HTML via a crafted payload injected into a Calendar's “Name” text field

Attack profile

How easy it is to exploit

Attack vector: Network
Complexity: Low
Privileges needed: Low
User interaction: Active

What an attacker can affect

Confidentiality: Low
Integrity: Low
Availability: None

Exploit likelihood

0.23%Up 0.1 points since Sep 30, 2025

What each source reports

CVE List Score used 4.8

Record: CVE-2025-43818
CVSS 4.0: 4.8 MediumCVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:A/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N
Weakness: CWE-79
Updated: 2026-11-02

EUVDEUVD-2025-31650 4.8

Record: EUVD-2025-31650
CVSS 4.0: 4.8 MediumCVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:A/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N
Updated: 2026-11-02

GitHub AdvisoriesGHSA-gj92-p9mh-83j8 4.8

Liferay Portal vulnerable to cross-site scripting in the Calendar widget

Record: GHSA-gj92-p9mh-83j8
CVSS 4.0: 4.8 MediumCVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:A/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N
Weakness: CWE-79
Updated: 2026-11-02

NVD 4.8

Record: CVE-2025-43818
CVSS 4.0: 4.8 MediumCVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:A/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N/E:X/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: 6.1 MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Weakness: CWE-79
Updated: 2026-11-02

OSV 6.1

Record: CVE-2025-43818
CVSS 3.1: 6.1 MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Updated: 2026-11-02

OSVGHSA-gj92-p9mh-83j8 4.8

Liferay Portal vulnerable to cross-site scripting in the Calendar widget

Record: GHSA-gj92-p9mh-83j8
CVSS 4.0: 4.8 MediumCVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:A/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N
Weakness: CWE-79
Updated: 2026-11-02

Affected products

Affected packages

Affected packages
Package	Affected	Fixed
`com.liferay:com.liferay.calendar.web` Maven	5.0.45 up to 5.0.87	5.0.87
`com.liferay:com.liferay.calendar.web` Maven	5.0.45 up to 5.0.87, plus listed versions 5.0.465.0.475.0.485.0.495.0.50 Show 36 moreShow less 5.0.515.0.525.0.535.0.545.0.555.0.565.0.575.0.585.0.595.0.605.0.615.0.625.0.635.0.645.0.655.0.665.0.675.0.685.0.695.0.705.0.715.0.725.0.735.0.745.0.755.0.765.0.775.0.785.0.795.0.805.0.815.0.825.0.835.0.845.0.855.0.86	5.0.87

History

History
Recorded	Changed	Sources
Nov 2, 2026	first indexed	CVE List, EUVD, GitHub Advisories, NVD, OSV

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2025-43818 is a medium vulnerability (CVSS 4.8) in Liferay Dxp, published September 29, 2025. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.23%, the 13th percentile. Fixed in com.liferay:com.liferay.calendar.web 5.0.87.