CVE-2023-37940: Cross-site scripting (XSS) vulnerability in the edit Service Access Policy page in Liferay Portal 7.0.0 throug

Routine

MEDIUM 4.8UPGRADEUPGRADE

CVE-2023-37940 is a medium-severity flaw (CVSS 4.8) affecting liferay portal, digital experience platform. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Cross-site scripting (XSS) vulnerability in the edit Service Access Policy page in Liferay Portal 7.0.0 through 7.4.3.87, and Liferay DXP 7.4 GA through update 87, 7.3 GA through update 29, and older unsupported versions allows remote attackers to inject arbitrary web script or HTML via a crafted payload injected into a service access policy's `Service Class` text field.

Why this priority

No elevated risk signals yet

A fixed release or distro patch exists.

Risk facts

CVSS score	4.8 (Medium)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	High
User interaction	Required
EPSS exploit chance	0.3% (top 80%)
CISA exploited list	No
Weakness	CWE-79
Published	2024-12-17
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

2024-12-17 22:15 UTCPublished CVE record published
2026-06-17 06:08 UTCUpdated Record last modified

liferay liferay portal UPGRADE

Affected: >= 7.0.0 and < 7.4.3.88

Fixed in: 7.4.3.88

Safe to downgrade to: a release before 7.0.0

1. Check installed version

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

2. UPGRADE to 7.4.3.88 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade liferay-portal

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade liferay-portal

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 7.0.0 (Debian / Ubuntu)

apt-cache madison liferay-portal sudo apt install liferay-portal=<VERSION_BEFORE_7.0.0> sudo apt-mark hold liferay-portal

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

dnf --showduplicates list liferay-portal sudo dnf downgrade liferay-portal-<VERSION_BEFORE_7.0.0> 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.

liferay digital experience platform UPGRADE

Affected: >= 7.0 and < 7.3 · 7.3 · 7.3 fix_pack_1 · 7.3 fix_pack_2 · 7.3 service_pack_1 · 7.3 service_pack_3 · 7.3 update10 · 7.3 update11

Fixed in: 7.3

Safe to downgrade to: a release before 7.0

1. Check installed version

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

2. UPGRADE to 7.3 (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 7.0 (Debian / Ubuntu)

apt-cache madison digital-experience-platform sudo apt install digital-experience-platform=<VERSION_BEFORE_7.0> 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_7.0> 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.

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-2023-37940?

liferay portal: upgrade to 7.4.3.88; digital experience platform: upgrade to 7.3. Exact commands for each OS are on this page.

Is CVE-2023-37940 being exploited?

CVE-2023-37940 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-2023-37940 affect?

CVE-2023-37940 affects liferay portal, digital experience platform. Severity is medium (CVSS 4.8). Cross-site scripting (XSS) vulnerability in the edit Service Access Policy page in Liferay Portal 7.0.0 through 7.4.3.87, and Liferay DXP 7.4 GA through update 87, 7.3 GA through update 29, and older unsupported versions allows remote attac

How urgent is CVE-2023-37940?

Priority 22/100. No elevated risk signals yet.

Software pages

Liferay vulnerabilities

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References

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