Is CVE-2022-28977 in the CISA KEV catalog?

No. CVE-2022-28977 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2022-28977?

CVE-2022-28977 has a CVSS v3 base score of 6.1 (MEDIUM).

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

CVE-2022-28977 has an EPSS score of 0.45% (36th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2022-28977?

Upgrade liferay portal to 7.4.3.4 or later.

CVE & CISA-KEV Catalog

CVE-2022-28977

MEDIUM

6.1

CVSS v3

NVD

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) 'redirect` parameter (2) `FORWARD_URL` parameter, and (3) others parameters that rely on HtmlUtil.escapeRedirect.

CWE-601Open Redirect

How to fix

Remediation Available

liferay portalNVD

Affected:>= 7.3.1, < 7.4.3.4Fixed in:7.4.3.4CVE-2022-28977derived from NVD

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorNetwork

Attack ComplexityLow

Privileges RequiredNone

User InteractionRequired

ScopeChanged

Impact

ConfidentialityLow

IntegrityLow

AvailabilityNone

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Exploit Intelligence

0.45%probability of exploitation in 30 days

36thpercentile

Low risk: more likely to be exploited than 36% of all known CVEs.

References

Patch1

portal.liferay.dev

Product1

liferay.com

Related Vulnerabilities

Other CWE-601 (Open Redirect) vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2025-4123	High	7.6	98%	-	Fix
CVE-2018-11784	Medium	4.3	94%	-	Fix
CVE-2021-22881	Medium	6.1	87%	-	Fix
CVE-2022-45402	Medium	6.1	82%	-	Fix
CVE-2017-1000117	High	8.8	78%	-	Fix
CVE-2019-10098	Medium	6.1	74%	-	Fix

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Markdown

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HTML

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2026-07-05.