How severe is CVE-2016-0784?

CVE-2016-0784 has a CVSS score of 6.5/10, rated MEDIUM. Review your exposure and patch according to your risk tolerance.

Which packages are affected by CVE-2016-0784?

CVE-2016-0784 affects the following packages: org.apache.openmeetings:openmeetings-install (Maven). Ecosystems affected: Maven.

How do I fix CVE-2016-0784?

Update org.apache.openmeetings:openmeetings-install to 3.1.1 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms CVE-2016-0784 is resolved across your whole dependency graph.

How do I detect CVE-2016-0784 in my Maven dependencies?

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

How do I mitigate CVE-2016-0784 if there is no patch (or I can't update yet)?

Resolve every user-supplied path to its canonical form and reject anything that escapes the intended directory, and run the component under an account that has no read or write access outside the directory it legitimately serves.

Is CVE-2016-0784 actively exploited in the wild?

Yes. There are 1 known exploit references for CVE-2016-0784, including 1 documented proof-of-concept exploit on Exploit-DB. 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-2016-0784?

CVE-2016-0784 has an EPSS (Exploit Prediction Scoring System) score of 54.7%, placing it in the 99th 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. A score above 50% indicates significantly elevated exploitation risk — immediate patching is strongly recommended.

What type of vulnerability is CVE-2016-0784?

CVE-2016-0784 is classified as Path Traversal (CWE-22). 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-2016-0784 published, and has it been updated?

CVE-2016-0784 was published on May 14, 2022 and was last updated on April 14, 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-2016-0784 — openmeetings-install

MEDIUMFix: apache/openmeetings@fbab889

CVE-2016-0784 is a medium-severity (CVSS 6.5) Path Traversal vulnerability in org.apache.openmeetings:openmeetings-install. 1 public exploit or proof-of-concept reference is indexed, so weaponization risk is real. A fix is available for org.apache.openmeetings:openmeetings-install — see the affected versions and patch details below.

Apache OpenMeetings Directory Traversal vulnerability

Published

May 14, 2022

Updated

Apr 14, 2025

Affected

1 pkg

Patched

1 / 1

Exploits

1 known

Exploitation data as of Oct 31, 2026 · OSV.dev, NVD, FIRST.org (EPSS)

EPSS Exploitation Probability

via FIRST.org ↗

54.7%probability of exploitation in next 30 days

High Risk-1.66%

Lower risk than most CVEs99th percentile — riskier than 99% 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

☕org.apache.openmeetings:openmeetings-install

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

Directory traversal vulnerability in the Import/Export System Backups functionality in Apache OpenMeetings before 3.1.1 allows remote authenticated administrators to write to arbitrary files via a .. (dot dot) in a ZIP archive entry.

Affected Packages

1 total 1 fixed

Ecosystem	Package	Vulnerable range	Fix
☕Maven	`org.apache.openmeetings:openmeetings-install`	≥ 1.9.0&&< 3.1.1	3.1.1`org.apache.openmeetings:openmeetings-install:3.1.1`

Affected Products

1 product · 1 configurations

Application

openmeetingsapache

≤ 3.1.0

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-39642webappslinux

Apache OpenMeetings 1.9.x < 3.1.0 - '.ZIP' File Directory Traversal

by Andreas Lindh · Mar 31, 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 org.apache.openmeetings:openmeetings-install, including transitive dependencies — a direct dependency you never call can still pull in a vulnerable version.
Fix
Update org.apache.openmeetings:openmeetings-install to 3.1.1 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms CVE-2016-0784 is resolved across your whole dependency graph.
Workarounds
Resolve every user-supplied path to its canonical form and reject anything that escapes the intended directory, and run the component under an account that has no read or write access outside the directory it legitimately serves.

Frequently Asked Questions

O3 Security · Impact-Aware SCA

Is CVE-2016-0784 in your dependencies?

Find it across Maven, including transitive dependencies.

Scan my dependencies How O3 SCA works

CVSS Score

6.5/10CVSS v3 base

Vector breakdown

Attack Vector

Network

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

High

Availability

None

Raw vector

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

CWE Classification

CWE-22Path Traversal

Weaponization

No Nuclei template or Metasploit module yet. 1 public proof-of-concept reference is listed on this page.

OpenSSF Scorecard

Package health score

openmeetings

4.8/10

Maintained10/10

Code-Review0/10

Branch-Protection3/10

Assessed Oct 26, 2026

Timeline

First exploit

Mar 31, 2016

Disclosed

May 14, 2022

Last updated

Apr 14, 2025

Identifiers

CVE-2016-0784

References

Advisorynvd.nist.gov · CVE 2016 0784 Webgithub.com · fbab8891d96f3352c37f1be303d9c9a685aa6847 Webweb.archive.org · all your meetings are belong to us remote code Webweb.archive.org · CHANGELOG Webweb.archive.org · threaded Webweb.archive.org · Apache OpenMeetings 3.1.0 Path Traversal Webexploit-db.com Webopenmeetings.apache.org · security Webopenwall.com Packagegithub.com · openmeetings

Related vulnerabilities

This CVE is medium severity; 7 of 8 other CVEs with CWE-22 are rated as high or higher (top: critical).

CVE-2026-62331GHSA-4xm8-rg9h-jhq2CVE-2026-9083CVE-2026-115908CVE-2026-118667CVE-2026-118654CVE-2026-116673GHSA-7w82-6f9j-v9jpBrowse all CWE-22

Provenance

Sources

OSV.devNVDFIRST.org (EPSS)

Last verifiedApr 14, 2025

CVE-2016-0784 — openmeetings-install

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-2016-0784 in your dependencies?