CVE-2023-44311: Liferay Portal and Liferay DXP Vulnerable to XSS via the OAuth2ProviderApplicationRedirect Class

Should you act?

Critical and remotely reachable

No known exploitation yet, but it is network-reachable without credentials. This signal is computed from CISA KEV, EPSS and CVSS data; it is not an editorial verdict.

• No confirmed exploitation. It is not in CISA’s KEV catalog and CISA’s SSVC assessment records no known exploitation. That can change quickly after a public write-up; re-check if you are affected.
• EPSS 0.6%, percentile 46: FIRST’s model estimates a 0.6% chance of exploitation activity in the next 30 days, higher than 46% of all scored CVEs (low). EPSS is a probability, not a verdict.
• Needs a user to click or open something. Phishing makes that realistic, but it is not wormable.
• Only applies if your dependency tree includes com.liferay:com.liferay.oauth2.provider.rest (Maven) < 4.0.51, fixed in 4.0.51; com.liferay.portal:release.dxp.bom (Maven) >= 7.4.13.u41, < 7.4.13.u90, fixed in 7.4.13.u90. Check your lockfile, including transitive dependencies.

What it is

Multiple reflected cross-site scripting (XSS) vulnerabilities in the Plugin for OAuth 2.0 module's OAuth2ProviderApplicationRedirect class in Liferay Portal 7.4.3.41 through 7.4.3.89, and Liferay DXP 7.4 update 41 through update 89 allow remote attackers to inject arbitrary web script or HTML via the (1) code, or (2) error parameter. This issue is caused by an incomplete fix in CVE-2023-33941.

From the GitHub advisory

Multiple reflected cross-site scripting (XSS) vulnerabilities in the Plugin for OAuth 2.0 module's OAuth2ProviderApplicationRedirect class before 4.0.51 from Liferay Portal (7.4.3.41 through 7.4.3.89), and Liferay DXP 7.4 update 41 through update 89 allow remote attackers to inject arbitrary web script or HTML via the (1) code, or (2) error parameter. This issue is caused by an incomplete fix in CVE-2023-33941.

Weakness type: CWE-79.

Product: com.liferay:com.liferay.oauth2.provider.rest (Maven) · Assigned by: Liferay · Published: 2023-10-17

Affected and fixed versions

Severity scores

• Attack vector: network (remotely reachable)
• Attack complexity: low
• Privileges required: none (no login)
• User interaction: required (a user must click/open something)
• Scope: changed (can affect other components)

CVSS measures how bad a flaw is if exploited, not how likely exploitation is. Read it next to the exploitation data below.

Exploitation and urgency

• CISA KEV: not listed (no confirmed in-the-wild exploitation known to CISA).
• CISA SSVC assessment: exploitation none, automatable no, technical impact partial.
• FIRST EPSS (model of 2026-10-21): 0.57% probability of exploitation activity in the next 30 days; percentile 46.

Timeline

• 2023-10-17 — CVE record published by Liferay
• 2023-10-17 — GitHub-reviewed advisory GHSA-49gm-5685-8fxv published (critical)
• 2024-09-13 — CVE record last updated

Sources and references

Original sources first. Version and fix details should always be confirmed against the vendor or project advisory.

Vendor and project advisories, patches

1. liferay.dev liferay.dev

Vulnerability records

1. GitHub Advisory GHSA-49gm-5685-8fxv github.com
2. CVE.org record CVE-2023-44311 cve.org
3. NVD entry CVE-2023-44311 nvd.nist.gov

Other references from the CVE record and advisory

1. github.com github.com
2. liferay.atlassian.net liferay.atlassian.net
3. liferay.dev liferay.dev

Critical Maven advisories · Today’s Security Digest