Staging Environment: Content and features may be unstable or change without notice.
Advisory details: gitlab / maven/com.liferay.portal/release.portal.bom/CVE-2025-43820
Advisory ID gitlab/maven/com.liferay.portal/release.portal.bom/CVE-2025-43820
Aliases CVE-2025-43820
GHSA-pf86-4w35-cj89
Summary Liferay Portal vulnerable to cross-site scripting in the Calendar widget Multiple cross-site scripting (XSS) vulnerabilities in the Calendar widget when inviting users to a event 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 35 allow remote attackers to inject arbitrary web script or HTML via a crafted payload injected into a user’s (1) First Name, (2) Middle text, or (3) Last Name text fields.
Status Published
Exploitability 0.5
Weighted Severity 0.0
Risk
Affected and Fixed Packages Package Details
Introduced and Fixed Package Commit Patches Package Commit Patches Details
Weaknesses (3)
CWE-79 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
CWE-937 OWASP Top Ten 2013 Category A9 - Using Components with Known Vulnerabilities
CWE-1035 OWASP Top Ten 2017 Category A9 - Using Components with Known Vulnerabilities
System Score Found at
cvssv3.1 https://gitlab.com/gitlab-org/advisories-community/-/blob/main/maven/com.liferay.portal/release.portal.bom/CVE-2025-43820.yml
Reference id Reference type URL
https://github.com/liferay/liferay-portal
CVE-2025-43820 https://liferay.dev/portal/security/known-vulnerabilities/-/asset_publisher/jekt/content/CVE-2025-43820
CVE-2025-43820 https://nvd.nist.gov/vuln/detail/CVE-2025-43820
GHSA-pf86-4w35-cj89 https://github.com/advisories/GHSA-pf86-4w35-cj89
No exploits are available.

No EPSS data available for this advisory.

Patch URL
There are no known patches.
Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:L/A:N Found at https://gitlab.com/gitlab-org/advisories-community/-/blob/main/maven/com.liferay.portal/release.portal.bom/CVE-2025-43820.yml
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none

Vector: SSVCv2/E:N/A:N/T:P/P:M/B:A/M:M/D:T/2025-09-30T14:46:02Z/

Decision: Track

Source URL: https://github.com/cisagov/vulnrichment/blob/develop/2025/43xxx/CVE-2025-43820.json

Source Advisory: vulnrichment/CVE-2025-43820

View SSVC decision tree 
[{'Exploitation': 'none'},
 {'Automatable': 'no'},
 {'Technical Impact': 'partial'},
 {'Mission Prevalence': 'minimal'},
 {'Public Well-being Impact': 'material'},
 {'Mission & Well-being': 'medium'}]