How severe is CVE-2016-3670?

CVE-2016-3670 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-2016-3670?

CVE-2016-3670 affects the following packages: com.liferay:com.liferay.portal.search.web (Maven). Ecosystems affected: Maven.

How do I fix CVE-2016-3670?

Update com.liferay:com.liferay.portal.search.web to 1.0.3 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms CVE-2016-3670 is resolved across your whole dependency graph.

How do I detect CVE-2016-3670 in my Maven dependencies?

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

How do I mitigate CVE-2016-3670 if there is no patch (or I can't update yet)?

Escape or sanitise the affected output on the server side rather than relying on client-side filtering, and add a Content-Security-Policy that blocks inline script execution so injected markup cannot run even if it reaches the page.

Is CVE-2016-3670 actively exploited in the wild?

Yes. There are 5 known exploit references for CVE-2016-3670, including 1 documented proof-of-concept exploit on Exploit-DB and 4 in-the-wild exploitations observed on GitHub and other sources. Treat this as actively exploitable and prioritize patching immediately. All exploit code should only be run in an isolated sandbox environment for research or authorized testing — never against production systems without explicit written authorization.

What is the EPSS score for CVE-2016-3670?

CVE-2016-3670 has an EPSS (Exploit Prediction Scoring System) score of 2.5%, placing it in the 85th 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-2016-3670?

CVE-2016-3670 is classified as Cross-site Scripting (XSS) (CWE-79). This weakness type describe the underlying flaw category, which helps determine the potential impact and the right class of mitigation. This is a high-impact weakness class that often enables remote code execution or data exposure.

When was CVE-2016-3670 published, and has it been updated?

CVE-2016-3670 was published on May 17, 2022 and was last updated on August 8, 2025. 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-2016-3670 — com.liferay.portal.search…

MEDIUMFix: liferay/liferay-portal@b7ce087

CVE-2016-3670 is a medium-severity (CVSS 6.1) Cross-site Scripting (XSS) vulnerability in com.liferay:com.liferay.portal.search.web. 5 public exploit or proof-of-concept references are indexed, so weaponization risk is real. A fix is available for com.liferay:com.liferay.portal.search.web — see the affected versions and patch details below.

Liferay Portal Vulnerable to XSS in Profile Search Functionality

Published

May 17, 2022

Updated

Aug 8, 2025

Affected

1 pkg

Patched

1 / 1

Exploits

5 known

Exploitation data as of Nov 4, 2026 · OSV.dev, NVD, FIRST.org (EPSS)

EPSS Exploitation Probability

via FIRST.org ↗

2.5%probability of exploitation in next 30 days

Lower Risk0.00%

Lower risk than most CVEs85th percentile — riskier than 85% 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

1 pkg affected

☕com.liferay:com.liferay.portal.search.web

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

Cross-site scripting (XSS) vulnerability in users.jsp in the Profile Search functionality in Liferay Portal Search Web before 1.0.3 from Liferay (before 7.0.0 CE RC1) allows remote attackers to inject arbitrary web script or HTML via the FirstName field.

Affected Packages

1 total 1 fixed

Ecosystem	Package	Vulnerable range	Fix
☕Maven	`com.liferay:com.liferay.portal.search.web`	all versions	1.0.3`com.liferay:com.liferay.portal.search.web:1.0.3`

Affected Products

1 product · 1 configurations

Application

liferay portalliferay

≤ 6.2

range

Exploits & PoCs

Research use only. For defensive security, authorized penetration testing, and academic research only. Never execute exploit code against systems without explicit written authorization.

EDB-39880webappsjsp

Liferay CE < 6.2 CE GA6 - Persistent Cross-Site Scripting

by Fernando Câmara · Jun 2, 2016

Exploit-DB Source

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:com.liferay.portal.search.web, including transitive dependencies — a direct dependency you never call can still pull in a vulnerable version.
Fix
Update com.liferay:com.liferay.portal.search.web to 1.0.3 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms CVE-2016-3670 is resolved across your whole dependency graph.
Workarounds
Escape or sanitise the affected output on the server side rather than relying on client-side filtering, and add a Content-Security-Policy that blocks inline script execution so injected markup cannot run even if it reaches the page.

Frequently Asked Questions

O3 Security · Impact-Aware SCA

Is CVE-2016-3670 in your dependencies?

Find it across Maven, including transitive dependencies.

Scan my dependencies How O3 SCA works

CVSS Score

6.1/10CVSS v3 base

Vector breakdown

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

Required

Scope

Changed

Confidentiality

Low

Integrity

Low

Availability

None

Raw vector

CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

CWE Classification

CWE-79Cross-site Scripting (XSS)

Weaponization

No Nuclei template or Metasploit module yet. 5 public proof-of-concept references are listed on this page.

OpenSSF Scorecard

Package health score

liferay-portal

2.5/10

Code-Review0/10

Maintained10/10

Branch-Protection0/10

Assessed Nov 2, 2026

Timeline

First exploit

Jun 2, 2016

Disclosed

May 17, 2022

Last updated

Aug 8, 2025

Identifiers

CVE-2016-3670

References

Advisorynvd.nist.gov · CVE 2016 3670 Webgithub.com · b7ce087039f3b753f36f558df5faefac4ad4b160 Webissues.liferay.com · LPS 62387 Weblabs.integrity.pt · cve 2016 3670 Webexploit-db.com Webpacketstormsecurity.com · Liferay CE Stored Cross Site Scripting Webseclists.org Websecuritytracker.com Packagegithub.com · liferay portal

Related vulnerabilities

Also affects com.liferay.portal.search.web

This CVE is medium severity, in line with the other 4 CVEs affecting com.liferay.portal.search.web.

CVE-2025-43781CVE-2022-42118CVE-2022-42112CVE-2022-28979

Same weakness: CWE-79

This CVE is medium severity; 4 of 4 other CVEs with CWE-79 are rated as high or higher (top: critical).

CVE-2026-55649CVE-2026-113787CVE-2026-44267CVE-2026-96632Browse all CWE-79

Provenance

Sources

OSV.devNVDFIRST.org (EPSS)

Last verifiedAug 8, 2025