How severe is CVE-2022-28977?

CVE-2022-28977 has a CVSS score of 6.1/10, rated MEDIUM. Review your exposure and patch according to your risk tolerance.

Which packages are affected by CVE-2022-28977?

CVE-2022-28977 affects the following packages: com.liferay.portal:release.portal.bom (Maven), com.liferay.portal:release.dxp.bom (Maven), com.liferay.portal:release.dxp.bom (Maven), com.liferay.portal:release.dxp.bom (Maven), com.liferay.portal:com.liferay.util.java (Maven). Ecosystems affected: Maven.

How do I fix CVE-2022-28977?

Update com.liferay.portal:release.portal.bom to 7.4.3.4-ga4 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms CVE-2022-28977 is resolved across your whole dependency graph.

How do I detect CVE-2022-28977 in my Maven dependencies?

Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for com.liferay.portal:release.portal.bom, including transitive dependencies — a direct dependency you never call can still pull in a vulnerable version.

How do I mitigate CVE-2022-28977 if there is no patch (or I can't update yet)?

Stop reflecting attacker-controlled destinations: resolve every redirect target against an allowlist of paths or hosts you own, prefer a server-side key over a full URL in the request, and reject absolute URLs entirely where the flow only ever needs a relative one.

Is CVE-2022-28977 actively exploited in the wild?

No public exploit code has been indexed for CVE-2022-28977 yet. This does not mean the vulnerability cannot be exploited — absence of public exploits does not imply safety. Apply the recommended fix and use O3 Security to monitor your exposure.

What is the EPSS score for CVE-2022-28977?

CVE-2022-28977 has an EPSS (Exploit Prediction Scoring System) score of 0.6%, placing it in the 49th percentile of all CVEs. EPSS is maintained by FIRST.org and estimates the probability that a vulnerability will be exploited in the wild within the next 30 days. This score indicates relatively lower exploitation probability, though the CVSS severity should still guide your patching priority.

What type of vulnerability is CVE-2022-28977?

CVE-2022-28977 is classified as Open Redirect (CWE-601). This weakness type describe the underlying flaw category, which helps determine the potential impact and the right class of mitigation.

When was CVE-2022-28977 published, and has it been updated?

CVE-2022-28977 was published on September 22, 2022 and was last updated on October 28, 2026. Advisory data evolves as severity scores, affected ranges, and exploit intelligence are revised — always check the latest version of the advisory before acting.

☕

☕ Maven

Not in CISA KEV

MEDIUM severity

CVE-2022-28977 — release.portal.bom

MEDIUMFix: liferay/liferay-portal@242e8bc

CVE-2022-28977 is a medium-severity (CVSS 6.1) Open Redirect vulnerability in com.liferay.portal:release.portal.bom. A fix is available for com.liferay.portal:release.portal.bom — see the affected versions and patch details below.

Liferay Portal and Liferay DXP HtmlUtil.escapeRedirect Can Be Circumvented

Also known asGHSA-w397-9p2j-6x23

Published

Sep 22, 2022

Updated

Oct 28, 2026

Affected

5 pkgs

Patched

5 / 5

Exploits

None indexed

Exploitation data as of Nov 5, 2026 · OSV.dev, NVD, FIRST.org (EPSS)

Exploitation Status

No confirmed exploitation observed yet

CISA’s own triage has not observed active exploitation or public proof-of-concept code for this CVE as of its last assessment.

Exploitation and automatability from CISA’s SSVC triage for CVE-2022-28977.

EPSS Exploitation Probability

via FIRST.org ↗

0.6%probability of exploitation in next 30 days

Lower Risk0.00%

Lower risk than most CVEs49th percentile — riskier than 49% of all scored CVEsHighest risk

Probability of exploitation in the next 30 days, from FIRST.org EPSS.

How urgent is this, really

Where this sits among everything scored

Real-World Exposure

5 pkgs affected

☕com.liferay.portal:release.portal.bom☕com.liferay.portal:release.dxp.bom☕com.liferay.portal:release.dxp.bom☕com.liferay.portal:release.dxp.bom☕com.liferay.portal:com.liferay.util.java

Real-time download stats are indexed for npm and PyPI packages. This vulnerability affects Maven packages — download data is not available via public APIs for these ecosystems.

Description

HtmlUtil.escapeRedirect in Liferay Portal 7.3.1 through 7.4.2, and Liferay DXP 7.0 fix pack 91 through 101, 7.1 fix pack 17 through 25, 7.2 fix pack 5 through 14, and 7.3 before service pack 3 can be circumvented by using multiple forward slashes, which allows remote attackers to redirect users to arbitrary external URLs via the (1) 'redirectparameter (2)FORWARD_URL` parameter, and (3) others parameters that rely on HtmlUtil.escapeRedirect.

Affected Packages

5 total 5 fixed

Ecosystem	Package	Vulnerable range	Fix
☕Maven	`com.liferay.portal:release.portal.bom`	≥ 7.3.1-ga2&&< 7.4.3.4-ga4	7.4.3.4-ga4`com.liferay.portal:release.portal.bom:7.4.3.4-ga4`
☕Maven	`com.liferay.portal:release.dxp.bom`	≥ 7.0.10.fp91&&< 7.0.10.fp101	7.0.10.fp101`com.liferay.portal:release.dxp.bom:7.0.10.fp101`
☕Maven	`com.liferay.portal:release.dxp.bom`	≥ 7.1.10.fp17&&< 7.1.10.fp25	7.1.10.fp25`com.liferay.portal:release.dxp.bom:7.1.10.fp25`
☕Maven	`com.liferay.portal:release.dxp.bom`	≥ 7.2.10.fp5&&< 7.2.10.fp14	7.2.10.fp14`com.liferay.portal:release.dxp.bom:7.2.10.fp14`
☕Maven	`com.liferay.portal:com.liferay.util.java`	all versions	7.9.0`com.liferay.portal:com.liferay.util.java:7.9.0`

Affected Products

3 products · 37 configurations

Application

digital experience platformliferay

3 versions

7.07.17.2

Application

dxpliferay

1 version

7.3

Application

liferay portalliferay

≥ 7.3.1 && < 7.4.3.4

range

Detection & mitigation playbook

Open-source dependency

Detect
Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for com.liferay.portal:release.portal.bom, including transitive dependencies — a direct dependency you never call can still pull in a vulnerable version.
Fix
Update com.liferay.portal:release.portal.bom to 7.4.3.4-ga4 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms CVE-2022-28977 is resolved across your whole dependency graph.
Workarounds
Stop reflecting attacker-controlled destinations: resolve every redirect target against an allowlist of paths or hosts you own, prefer a server-side key over a full URL in the request, and reject absolute URLs entirely where the flow only ever needs a relative one.

Frequently Asked Questions

HtmlUtil.escapeRedirect in Liferay Portal 7.3.1 through 7.4.2, and Liferay DXP 7.0 fix pack 91 through 101, 7.1 fix pack 17 through 25, 7.2 fix pack 5 through 14, and 7.3 before service pack 3 can be circumvented by using multiple forward slashes, which allows remote attackers to redirect users to arbitrary external URLs via the (1) 'redirect` parameter (2) `FORWARD_URL` parameter, and (3) others parameters that rely on HtmlUtil.escapeRedirect.

O3 Security · Impact-Aware SCA

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CVE-2022-28977 — release.portal.bom

Exploitation Status

No confirmed exploitation observed yet

EPSS Exploitation Probability

How urgent is this, really

Where this sits among everything scored

Real-World Exposure

Description

Affected Packages

Affected Products

Detection & mitigation playbook

Detect

Fix

Workarounds

Frequently Asked Questions

Is CVE-2022-28977 in your dependencies?