CVE-2026-47430: ## Summary The iOS implementation of `cordova-plugin-inappbrowser` passes the `id` field from a `WKScriptMess

This month

HIGH 7.5REMOTEWATCHLISTUPGRADE

CVE-2026-47430 is a high-severity flaw (CVSS 7.5) affecting cordova inappbrowser. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

## Summary The iOS implementation of `cordova-plugin-inappbrowser` passes the `id` field from a `WKScriptMessage` body to `commandDelegate sendPluginResult:callbackId:` with no format validation (`CDVWKInAppBrowser.m:560–574`). Any web content loaded inside the InAppBrowser can fire any pending Cordova callback in the host app by posting a message whose `id` field is a guessable or enumerated callback identifier. An attack abusing this weakness

Why this priority

High severity
Remotely exploitable, no login, no user action
On your watchlist

A fixed release or distro patch exists.

Risk facts

CVSS score	7.5 (High)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	0.7% (top 46%)
CISA exploited list	No
Weakness	CWE-20
Published	2026-06-08
Last modified	2026-07-23

Publisher (CNA): Apache Software Foundation · Vendor: apache

Last updated 2026-07-23 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2026-06-08 12:16 UTCPublished CVE record published
2026-07-23 07:10 UTCUpdated Record last modified

apache cordova inappbrowser UPGRADE

Affected: >= 3.1.0 and < 6.0.1

Fixed in: 6.0.1

Safe to downgrade to: a release before 3.1.0

1. Check installed version

apt-cache policy cordova-inappbrowser || rpm -q cordova-inappbrowser || cordova-inappbrowser --version

2. UPGRADE to 6.0.1 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade cordova-inappbrowser

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade cordova-inappbrowser

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 3.1.0 (Debian / Ubuntu)

apt-cache madison cordova-inappbrowser sudo apt install cordova-inappbrowser=<VERSION_BEFORE_3.1.0> sudo apt-mark hold cordova-inappbrowser

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

dnf --showduplicates list cordova-inappbrowser sudo dnf downgrade cordova-inappbrowser-<VERSION_BEFORE_3.1.0> sudo dnf versionlock add cordova-inappbrowser

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-2026-47430?

cordova inappbrowser: upgrade to 6.0.1. Exact commands for each OS are on this page.

Is CVE-2026-47430 being exploited?

CVE-2026-47430 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-2026-47430 affect?

CVE-2026-47430 affects cordova inappbrowser. Severity is high (CVSS 7.5). ## Summary The iOS implementation of `cordova-plugin-inappbrowser` passes the `id` field from a `WKScriptMessage` body to `commandDelegate sendPluginResult:callbackId:` with no format validation (`CDVWKInAppBrowser.m:560–574`). Any web con

How urgent is CVE-2026-47430?

Priority 50/100. High severity; Remotely exploitable, no login, no user action; On your watchlist

Software pages

iOS vulnerabilities

References

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