CVE-2025-43756: A reflected cross-site scripting (XSS)

Routine

MEDIUM 5.4UPGRADEDOWNGRADE

CVE-2025-43756 is a medium-severity flaw (CVSS 5.4) affecting digital experience platform, liferay portal. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

A reflected cross-site scripting (XSS) vulnerability in the Liferay Portal 7.4.3.132, and Liferay DXP 2025.Q1.0 through 2025.Q1.15, 2025.Q2.0 through 2025.Q2.2 and 2024.Q1.13 through 2024.Q1.19 allows a remote authenticated user to inject JavaScript code via snippet parameter.

Why this priority

No elevated risk signals yet

A fixed release or distro patch exists.

Risk facts

CVSS score	5.4 (Medium)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	Low
User interaction	Required
EPSS exploit chance	0.2% (top 88%)
CISA exploited list	No
Weakness	CWE-79
Published	2025-08-21
Last modified	2026-06-17

Publisher (CNA): Liferay Inc. · Vendor: liferay

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2025-08-21 17:15 UTCPublished CVE record published
2026-06-17 09:24 UTCUpdated Record last modified

liferay digital experience platform UPGRADE

Affected: >= 2024.q1.1 and < 2024.q1.20 · >= 2025.Q1.0 and < 2025.Q1.16 · >= 2025.Q2.0 and < 2025.Q2.3

Fixed in: 2024.q1.20, 2025.Q1.16, 2025.Q2.3

Safe to downgrade to: a release before 2024.q1.1

1. Check installed version

apt-cache policy digital-experience-platform || rpm -q digital-experience-platform || digital-experience-platform --version

2. UPGRADE to 2024.q1.20 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade digital-experience-platform

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade digital-experience-platform

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

3. If no update is available yet, DOWNGRADE to a release before 2024.q1.1 (Debian / Ubuntu)

apt-cache madison digital-experience-platform sudo apt install digital-experience-platform=<VERSION_BEFORE_2024.q1.1> sudo apt-mark hold digital-experience-platform

3. If no update is available yet, DOWNGRADE (RHEL / Amazon Linux / Fedora)

dnf --showduplicates list digital-experience-platform sudo dnf downgrade digital-experience-platform-<VERSION_BEFORE_2024.q1.1> sudo dnf versionlock add digital-experience-platform

Downgrade risk

Downgrading can break dependent software and may reopen older bugs. Read the distro advisory first and test on a non-production host.

After downgrade

Restart the service, and keep the package held until a fixed release ships.

liferay liferay portal DOWNGRADE

Affected: 7.4.3.132

Fixed in: no fixed release known

Safe to downgrade to: a release before 7.4.3.132

1. Check installed version

apt-cache policy liferay-portal || rpm -q liferay-portal || liferay-portal --version

2. No fixed release: DOWNGRADE to a release before 7.4.3.132 (Debian / Ubuntu)

apt-cache madison liferay-portal sudo apt install liferay-portal=<VERSION_BEFORE_7.4.3.132> sudo apt-mark hold liferay-portal

2. No fixed release: DOWNGRADE (RHEL / Amazon Linux / Fedora)

dnf --showduplicates list liferay-portal sudo dnf downgrade liferay-portal-<VERSION_BEFORE_7.4.3.132> sudo dnf versionlock add liferay-portal

Downgrade risk

Downgrading can break dependent software and may reopen older bugs. Read the distro advisory first and test on a non-production host.

After downgrade

Restart the service, and keep the package held until a fixed release ships.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2025-43756?

digital experience platform: upgrade to 2024.q1.20, 2025.Q1.16, 2025.Q2.3; liferay portal: downgrade or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2025-43756 being exploited?

CVE-2025-43756 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2025-43756 affect?

CVE-2025-43756 affects digital experience platform, liferay portal. Severity is medium (CVSS 5.4). A reflected cross-site scripting (XSS) vulnerability in the Liferay Portal 7.4.3.132, and Liferay DXP 2025.Q1.0 through 2025.Q1.15, 2025.Q2.0 through 2025.Q2.2 and 2024

How urgent is CVE-2025-43756?

Priority 22/100. No elevated risk signals yet.

Software pages

Liferay vulnerabilities

Related CVEs

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References

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