Skip to main content

Check & Log Email CVE-2026-5306

| EUVD-2026-25995 MEDIUM
2026-04-28 WPScan
5.4
CVSS 3.1 · NVD
Share

Severity by source

NVD PRIMARY
5.4 MEDIUM
AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
Required
Scope
Changed
Confidentiality
Low
Integrity
Low
Availability
None

Lifecycle Timeline

8
PoC Detected
Apr 28, 2026 - 20:13 vuln.today
Public exploit code
Patch released
Apr 28, 2026 - 20:13 nvd
Patch available
Analysis Generated
Apr 28, 2026 - 15:24 vuln.today
CVSS changed
Apr 28, 2026 - 15:22 NVD
5.4 (MEDIUM)
Patch available
Apr 28, 2026 - 08:01 EUVD
EUVD ID Assigned
Apr 28, 2026 - 06:30 euvd
EUVD-2026-25995
Analysis Generated
Apr 28, 2026 - 06:30 vuln.today
CVE Published
Apr 28, 2026 - 06:00 nvd
MEDIUM 5.4

DescriptionCVE.org

The Check & Log Email WordPress plugin before 2.0.13 does not properly handle email replacement, which could allow unauthenticated users to perform Stored XSS attacks when the email encoder setting is enabled

AnalysisAI

Stored XSS vulnerability in Check & Log Email WordPress plugin before version 2.0.13 allows authenticated users with low privileges to inject malicious scripts via improper email replacement handling when the email encoder setting is enabled. The vulnerability requires user interaction (UI:R) to execute, affecting confidentiality and integrity with cross-site scope. …

Unlock full vulnerability intelligence

  • Risk assessment & exploitation conditions
  • Attack chain visualization
  • Remediation with exact patch versions
  • Threat intelligence from 22 sources
  • Personal watchlist & email alerts

Free forever · No credit card required

Attack ChainAIDerived

Hypothetical attack flow derived from CVE metadata

Recon
Obtain WordPress user credentials
Delivery
Log in with authenticated account
Exploit
Enable or locate email encoder setting
Install
Inject XSS payload in email replacement field
C2
Save malicious configuration
Execute
Wait for admin to view email logs
Impact
Malicious script executes in admin browser

Vulnerability AssessmentAI

Exploitation Exploitation requires three specific conditions: (1) The Check & Log Email plugin must be installed and activated on the WordPress instance, (2) the email encoder setting must be explicitly enabled in plugin configuration, (3) the attacker must possess authenticated WordPress user access at contributor level or above to create or modify email log entries that are viewed by higher-privileged users (PR:L). … Additional conditions and limiting factors are described in the full assessment.
Risk Assessment This vulnerability presents a moderate but nuanced risk profile. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in.
Exploit Scenario An authenticated WordPress user with low privileges (e.g., contributor or subscriber account) enables or leverages the email encoder plugin setting, then crafts a malicious email address or replacement rule containing embedded JavaScript (e.g., <script>alert('XSS')</script> in place of email placeholders). When an administrator or other user views the logged email data in the WordPress dashboard, the unescaped script executes in their browser context, potentially stealing session cookies or redirecting them to a phishing site. …
Remediation Update the Check & Log Email WordPress plugin to version 2.0.13 or later, which contains vendor-released patches addressing the email replacement sanitization issue. … Detailed patch versions, workarounds, and compensating controls in full report.

Threat intelligence, references, and detailed analysis are available after sign-in.

Share

CVE-2026-5306 vulnerability details – vuln.today

This site uses cookies essential for authentication and security. No tracking or analytics cookies are used. Privacy Policy