CVE-2018-16202: Directory traversal vulnerability in cordova-plugin-ionic-webview versions prior to 2.2.0 (not including 2.0.0

This month

HIGH 8.6REMOTEUPGRADE

CVE-2018-16202 is a high-severity flaw (CVSS 8.6) affecting ionic web view. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Directory traversal vulnerability in cordova-plugin-ionic-webview versions prior to 2.2.0 (not including 2.0.0-beta.0, 2.0.0-beta.1, 2.0.0-beta.2, and 2.1.0-0) allows remote attackers to access arbitrary files via unspecified vectors.

Why this priority

High severity
Remotely exploitable, no login, no user action

A fixed release or distro patch exists.

Risk facts

CVSS score	8.6 (High)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	3.3% (top 11%)
CISA exploited list	No
Weakness	CWE-22
Published	2019-01-09
Last modified	2026-06-17

Publisher (CNA): JPCERT/CC · Vendor: ionicframework

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2019-01-09 23:29 UTCPublished CVE record published
2026-06-17 01:43 UTCUpdated Record last modified

ionicframework ionic web view UPGRADE

Affected: <= 1.2.1 · >= 2.0.1 and < 2.2.0 · 2.0.0

Fixed in: 2.2.0

Safe to downgrade to: a release before 2.0.0

1. Check installed version

apt-cache policy ionic-web-view || rpm -q ionic-web-view || ionic-web-view --version

2. UPGRADE to 2.2.0 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade ionic-web-view

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade ionic-web-view

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

3. If no update is available yet, DOWNGRADE to a release before 2.0.0 (Debian / Ubuntu)

apt-cache madison ionic-web-view sudo apt install ionic-web-view=<VERSION_BEFORE_2.0.0> sudo apt-mark hold ionic-web-view

3. If no update is available yet, DOWNGRADE (RHEL / Amazon Linux / Fedora)

dnf --showduplicates list ionic-web-view sudo dnf downgrade ionic-web-view-<VERSION_BEFORE_2.0.0> sudo dnf versionlock add ionic-web-view

Downgrade risk

Downgrading can break dependent software and may reopen older bugs. Read the distro advisory first and test on a non-production host.

After downgrade

Restart the service, and keep the package held until a fixed release ships.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2018-16202?

ionic web view: upgrade to 2.2.0. Exact commands for each OS are on this page.

Is CVE-2018-16202 being exploited?

CVE-2018-16202 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2018-16202 affect?

CVE-2018-16202 affects ionic web view. Severity is high (CVSS 8.6). Directory traversal vulnerability in cordova-plugin-ionic-webview versions prior to 2.2.0 (not including 2.0.0-beta.0, 2.0.0-beta.1, 2.0.0-beta.2, and 2.1.0-0) allows remote attackers to access arbitrary files via unspecified vectors.

How urgent is CVE-2018-16202?

Priority 57/100. High severity; Remotely exploitable, no login, no user action

References

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