CVE-2025-43818: 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…

PriorityP427medium6.1CVSS 3.1

AVNACLPRNUIRSCCLILAN

EPSS

0.21%

10.9th percentile

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

Affected

12 ranges

Vendor	Product	Version range	Fixed in
liferay	digital_experience_platform	—	—
liferay	digital_experience_platform	—	—
liferay	digital_experience_platform	>= 2023.Q3.1 < 2023.Q3.7	2023.Q3.7
liferay	digital_experience_platform	>= 2023.Q4.0 < 2023.Q4.5	2023.Q4.5
liferay	dxp	2023.Q3.1 – 2023.Q3.6	—
liferay	dxp	2023.Q4.0 – 2023.Q4.4	—
liferay	dxp	7.3.10-u25 – 7.3.10-u36	—
liferay	dxp	7.4.13-u35 – 7.4.13-u92	—
liferay	liferay_portal	>= 7.4.3.35 < 7.4.3.111	7.4.3.111
liferay	portal	7.4.3.35 – 7.4.3.110	—
msrc	cbl2_python-lxml_4.8.0-1_on_cbl_mariner_2.0	—	—
msrc	cm1_python-lxml_4.7.1-1_on_cbl_mariner_1.0	—	—

CVSS provenance

nvdv3.16.1MEDIUMCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

nvdv4.04.8MEDIUMCVSS: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

vendor_msrc7.1HIGH

Stop checking back — get the weekly exploitation signal.

Every Monday: what got weaponized or added to CISA KEV in the last seven days — each CVE cross-linked to its PoC, Nuclei template, and detection rule. Free, one email a week, unsubscribe in one click.