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CVE-2025-43813: Possible path traversal vulnerability and denial-of-service in the ComboServlet in Liferay Portal 7.4.0 throug

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HIGH 8.2REMOTEUPGRADEUPGRADE

CVE-2025-43813 is a high-severity flaw (CVSS 8.2) affecting digital experience platform, liferay portal. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Possible path traversal vulnerability and denial-of-service in the ComboServlet in Liferay Portal 7.4.0 through 7.4.3.107, and older unsupported versions, and Liferay DXP 2023.Q4.0 through 2023.Q4.4, 2023.Q3.1 through 2023.Q3.8, 7.4 GA through update 92, 7.3 GA through update 35, and older unsupported versions allows remote attackers to access arbitrary CSS and JSS files and load the files multiple times via the query string in a URL.

Why this priority

  • High severity
  • Remotely exploitable, no login, no user action

A fixed release or distro patch exists.

Risk facts

CVSS score8.2 (High)
Attack vectorNetwork (remote)
Attack complexityLow
Privileges neededNone
User interactionNone
EPSS exploit chance0.5% (top 57%)
CISA exploited listNo
WeaknessCWE-22
Published2025-09-29
Last modified2026-10-18
Publisher (CNA): Liferay Inc. · Vendor: liferay

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Last updated 2026-10-18 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

liferay digital experience platform UPGRADE
Affected: < 7.3 · >= 2023.q3.1 and < 2023.q3.9 · >= 2023.Q4.0 and < 2023.Q4.5 · 7.3 · 7.3 fix_pack_1 · 7.3 fix_pack_2 · 7.3 service_pack_1 · 7.3 service_pack_2
Fixed in: 7.3, 2023.Q4.5, 2023.q3.9
Safe to downgrade to: a release before 7.3
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 7.3 (Debian / Ubuntu)
apt-cache madison digital-experience-platform sudo apt install digital-experience-platform=<VERSION_BEFORE_7.3> 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_7.3> 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 UPGRADE
Affected: >= 7.3.0 and <= 7.3.7 · >= 7.4.0 and < 7.4.3.108
Fixed in: 7.4.3.108
Safe to downgrade to: a release before 7.3.0
1. Check installed version
apt-cache policy liferay-portal || rpm -q liferay-portal || liferay-portal --version
2. UPGRADE to 7.4.3.108 (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 7.3.0 (Debian / Ubuntu)
apt-cache madison liferay-portal sudo apt install liferay-portal=<VERSION_BEFORE_7.3.0> 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_7.3.0> 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.
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-2025-43813?

digital experience platform: upgrade to 7.3, 2023.Q4.5, 2023.q3.9; liferay portal: upgrade to 7.4.3.108. Exact commands for each OS are on this page.

Is CVE-2025-43813 being exploited?

CVE-2025-43813 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-2025-43813 affect?

CVE-2025-43813 affects digital experience platform, liferay portal. Severity is high (CVSS 8.2). Possible path traversal vulnerability and denial-of-service in the ComboServlet in Liferay Portal 7.4.0 through 7.4.3.107, and older unsupported versions, and Liferay DXP 2023.Q4.0 through 2023.Q4.4, 2023.Q3.1 through 2023.Q3.8, 7.4 GA thro

How urgent is CVE-2025-43813?

Priority 44/100. High severity; Remotely exploitable, no login, no user action

Software pages

Liferay vulnerabilities

Related CVEs

References

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