CVE-2023-6389Public exploitNetwork attack vector

User redirection via unvalidated destination parameter

Published Jan 29, 2024 · Updated Jun 20, 2025

Open redirect in Abhinav Singh WordPress Toolbar 2.2.6 and earlier allows remote attackers to send users to arbitrary sites via crafted links. The public toolbar.php endpoint uses the wptbto query parameter as its redirect destination without restricting it to trusted URLs. No authentication is required, but a target must follow the crafted link; the resulting redirect can lead the browser to a malicious site.

CVSS severity6.1
Medium
EPSS probability26.80%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Open redirect in Abhinav Singh WordPress Toolbar 2.2.6 and earlier allows remote attackers to send users to arbitrary sites via crafted links. The public toolbar.php endpoint uses the wptbto query parameter as its redirect destination without restricting it to trusted URLs. No authentication is required, but a target must follow the crafted link; the resulting redirect can lead the browser to a malicious site.

The record

CVE
CVE-2023-6389
Published
Jan 29, 2024
Updated
Jun 20, 2025
Vendor
Abhinav Singh
Product
WordPress Toolbar
Classifications
CWE-601
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jan 29, 2024CVE publishedPublication date reported by the CVE source.
  2. Jun 20, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=0 <=2.2.6

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Abhinav Singh · WordPress Toolbarversion=0 <=2.2.6

Published CVSS scores

6.1NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
6.1CISA-ADPCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-601URL Redirection to Untrusted Site ('Open Redirect')

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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