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Open Redirect CVE-2026-39484

| EUVDEUVD-2026-20152 MEDIUM
URL Redirection to Untrusted Site (Open Redirect) (CWE-601)
2026-04-08 Patchstack GHSA-vvj2-j66f-h239
4.7
CVSS 3.1 · Vendor: Patchstack
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Attack ChainAIDerived

Hypothetical attack flow derived from CVE metadata – not a confirmed exploit chain

  1. Recon
    Craft malicious redirect URL
  2. Delivery
    Send phishing email with link
  3. Exploit
    User clicks link on trusted site
  4. Install
    Plugin processes unvalidated redirect parameter
  5. C2
    User redirected to attacker site
  6. Execute
    Victim enters credentials
  7. Impact
    Attacker harvests sensitive data

Vulnerability Assessment

Weakness
CWE
OWASP Top 10:2025
A01:2025 - Broken Access Control
ASVS 5.0
V3 - Web Frontend Security Redirect URL validation
MITRE ATT&CK

1 technique across 1 tactic: Initial Access

The technique list with ATT&CK links and the kill-chain view is part of the Basic plan and up.

Impact

The CVSS score of 4.7 reflects a low-severity vulnerability despite moderate attack surface: the network vector (AV:N) and low complexity (AC:L) indicate easy attack execution, but the required user interaction (UI:R) and limited confidentiality impact (C:L) constrain real-world harm. The EPSS score of 0.02% (4th percentile) signals minimal exploitation probability in the wild, suggesting the vulnerability is not actively targeted. No public exploit code or CISA KEV status was identified in available data, further indicating low operational risk. The vulnerability's reliance on social engineering (phishing through redirection) means successful exploitation depends on victim deception rather than technical sophistication. Organizations should prioritize patching higher-CVSS or actively-exploited vulnerabilities first, though Hide My WP Ghost installations should still upgrade to close the attack vector.

Exploit ScenarioDerived

An attacker crafts a phishing email containing a malicious URL pointing to the victim's WordPress site with a specially-crafted redirect parameter pointing to a fake login page. When the user clicks the link, Hide My WP Ghost processes the request without validating the redirect destination and automatically forwards the user to the attacker's site. The victim, seeing the redirect came from their legitimate WordPress domain, may trust the destination and enter credentials or sensitive information.

This Month Plan within 30 days. Why: MEDIUM severity (CVSS 4.0-6.9).
No patch listed yet 0.0% exploitation probability (EPSS)

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AnalysisAIv1 – Apr 14, 2026

Open redirect vulnerability in Hide My WP Ghost WordPress plugin versions below 7.0.00 allows unauthenticated remote attackers to redirect users to arbitrary external websites, enabling phishing attacks. The vulnerability requires user interaction (clicking a malicious link) and affects the plugin's URL handling. With an EPSS score of 0.02% and no confirmed active exploitation, this represents a low real-world exploitation risk despite the moderate CVSS score of 4.7.

RemediationAI

Upgrade Hide My WP Ghost to version 7.0.00 or later. The vendor has released a patched version that implements proper URL validation to prevent open redirect attacks. Users should navigate to the WordPress plugin dashboard, access the Plugins section, and update Hide My WP Ghost to the latest available version. For sites unable to upgrade immediately, restrict plugin functionality or disable redirect features until patching is completed. Verification of the fix should be completed through the Patchstack vulnerability database (https://patchstack.com/database/Wordpress/Plugin/hide-my-wp) and the NVD advisory (https://nvd.nist.gov/vuln/detail/CVE-2026-39484).

Affected VersionsENISA

Hide My WP Ghost 0 ≤7.0.00

Affected Packages

euvd hide_my_wp_ghost no fix

Source: OSV (Open Source Vulnerabilities)

Affects your stack

Affects 1 package in euvd

Checking this CVE against your own stacks and servers is part of the Basic plan and up.

Technical ContextAI · show details

Hide My WP Ghost is a WordPress plugin that manages website security and obfuscation. The vulnerability stems from improper validation of redirect destinations in URL handling logic, classified under CWE-601 (URL Redirection to Untrusted Site). An attacker can craft a malicious URL containing an arbitrary external domain that the plugin fails to validate before redirecting the user. The plugin processes user-supplied input without implementing allowlisting or domain validation, permitting attackers to leverage the trusted domain reputation of the victim's WordPress site to socially engineer victims into visiting attacker-controlled pages. The affected product range spans from version 0 through versions prior to 7.0.00, as indicated by the CPE string cpe:2.3:a:john_darrel:hide_my_wp_ghost:*:*:*:*:*:*:*:*.

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Severity by source

Vendor (Patchstack) PRIMARY 4.7 MEDIUM
AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:N/A:N

Primary rating from Vendor (Patchstack) · only source for this CVE.

CVSS VectorVendor: Patchstack

Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
Required
Scope
Changed
Confidentiality
Low
Integrity
None
Availability
None

Lifecycle Timeline

2
CVSS changed
Apr 14, 2026 - 16:22 NVD
4.7 (MEDIUM)
CVE Published
Apr 08, 2026 - 08:30 nvd
N/A

DescriptionCVE.org

URL Redirection to Untrusted Site ('Open Redirect') vulnerability in John Darrel Hide My WP Ghost hide-my-wp allows Phishing.This issue affects Hide My WP Ghost: from n/a through < 7.0.00.

Threat Intelligence Overview

EPSS Score
0.0%
Top 96% exploitable
Data Quality
5 sources
Confidence: Medium

How this decision was reached

The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.

SignalValue
Severity MEDIUM
CISA KEV No
Public POC No
EPSS 0.0%
Patch available No
Active threat No
Deciding rule
MEDIUM severity (CVSS 4.0-6.9)
What every action level means
Emergency Immediate action required. Criteria: CRITICAL + in CISA KEV (actively exploited) without patch, OR CRITICAL + EPSS > 30% without patch, OR CRITICAL + active threat signals without patch.
Act Now Prioritize within 24-48h. Criteria: in KEV with patch available, OR CRITICAL + public POC, OR HIGH + EPSS > 10%, OR CRITICAL + active threat, OR any CRITICAL severity.
This Week Schedule remediation this week. Criteria: HIGH severity (CVSS 7.0-8.9). Patch within normal change window.
This Month Plan within 30 days. Criteria: MEDIUM severity (CVSS 4.0-6.9), lower exploitation probability. Include in regular patch cycle.
Monitor Track and reassess. Criteria: LOW severity (CVSS 0.1-3.9), minimal exploitation risk. No immediate action needed.

SSVC AssessmentENISA

SSVC Decision· derived
Scheduled
Exploitation
None
System Exposure· derived
Open
Automatable
No
Human Impact· derived
Medium
Technical Impact
Partial

Priority Score

24
Low Medium High Critical
KEV: 0
EPSS: 0
CVSS: +24
PoC: 0
Weaponized: 0
Threat intel: 0
Gov advisory: 0
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