CVE-2023-6389: The WordPress Toolbar WordPress plugin through 2.2.6 redirects to any URL via the "wptbto" parameter

Q: How do I fix CVE-2023-6389?

wordpress toolbar: upgrade to newer than 2.2.6. Exact commands for each OS are on this page.

Q: Is CVE-2023-6389 being exploited?

CVE-2023-6389 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2023-6389 affect?

CVE-2023-6389 affects wordpress toolbar. Severity is medium (CVSS 6.1). The WordPress Toolbar WordPress plugin through 2.2.6 redirects to any URL via the "wptbto" parameter. This makes it possible for unauthenticated attackers to redirect users to potentially malicious sites if they can successfully trick them

Q: How urgent is CVE-2023-6389?

Priority 51/100. EPSS top 2%: very likely to be exploited; Public exploit reference

This week

MEDIUM 6.1UPGRADE

CVE-2023-6389 is a medium-severity flaw (CVSS 6.1) affecting wordpress toolbar. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

The WordPress Toolbar WordPress plugin through 2.2.6 redirects to any URL via the "wptbto" parameter. This makes it possible for unauthenticated attackers to redirect users to potentially malicious sites if they can successfully trick them into performing an action.

Why this priority

EPSS top 2%: very likely to be exploited
Public exploit reference

A fixed release or distro patch exists.

Risk facts

CVSS score	6.1 (Medium)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	Required
EPSS exploit chance	26.8% (top 2%)
CISA exploited list	No
Weakness	CWE-601
Published	2024-01-29
Last modified	2026-06-17

Publisher (CNA): WPScan · Vendor: abhinavsingh

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

Am I affected?

Timeline

2024-01-29 15:15 UTCPublished CVE record published
2026-06-17 06:50 UTCUpdated Record last modified

abhinavsingh wordpress toolbar UPGRADE

Affected: <= 2.2.6

Fixed in: newer than 2.2.6

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy wordpress-toolbar || rpm -q wordpress-toolbar || wordpress-toolbar --version

2. UPGRADE to newer than 2.2.6 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade wordpress-toolbar

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade wordpress-toolbar

Note

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

Public exploits and detection

Public code exists for this CVE. Treat unpatched systems as at risk, and only run PoCs in a lab.

Nuclei scan template: WordPress Toolbar <= 2.2.6 - Open Redirect

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-2023-6389?

wordpress toolbar: upgrade to newer than 2.2.6. Exact commands for each OS are on this page.

Is CVE-2023-6389 being exploited?

CVE-2023-6389 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-2023-6389 affect?

CVE-2023-6389 affects wordpress toolbar. Severity is medium (CVSS 6.1). The WordPress Toolbar WordPress plugin through 2.2.6 redirects to any URL via the "wptbto" parameter. This makes it possible for unauthenticated attackers to redirect users to potentially malicious sites if they can successfully trick them

How urgent is CVE-2023-6389?

Priority 51/100. EPSS top 2%: very likely to be exploited; Public exploit reference

Software pages

WordPress vulnerabilities

References

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