Which versions of Mailenable are affected by CVE-2026-32852?

CVE-2026-32852 presents moderate security risk, a cross-site scripting vulnerability rated CVSS 5.1. Attackers could inject scripts to steal sessions or perform actions as authenticated users.. A patch is available.

Is there a public PoC exploit available for CVE-2026-32852?

Yes, a public proof-of-concept exploit is available for CVE-2026-32852. Prioritise patching immediately. EPSS: 0.1%.

How to fix or mitigate CVE-2026-32852?

Within 30 days: Identify affected systems and apply vendor patches as part of regular patch cycle. Verify Content-Security-Policy and output encoding.

Mailenable CVE-2026-32852

Q: What is the CVSS score of CVE-2026-32852?

CVE-2026-32852 has a CVSS 4.0 base score of 5.1 (Medium). CVSS vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X. EPSS exploitation probability: 0.1%.

EUVD-2026-14521 MEDIUM

Cross-site Scripting (XSS) (CWE-79)

2026-03-23 VulnCheck

GHSA-cwm4-pqjw-r7wj

XSS Mailenable

5.1

CVSS 4.0 · NVD

Severity by source

NVD PRIMARY

5.1 MEDIUM

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

Scope

Lifecycle Timeline

PoC Detected

Mar 30, 2026 - 14:29 vuln.today

Public exploit code

EUVD ID Assigned

Mar 23, 2026 - 19:30 euvd

EUVD-2026-14521

Analysis Generated

Mar 23, 2026 - 19:30 vuln.today

Patch released

Mar 23, 2026 - 19:30 nvd

Patch available

CVE Published

Mar 23, 2026 - 19:06 nvd

MEDIUM 5.1

DescriptionCVE.org

MailEnable versions prior to 10.55 contain a reflected cross-site scripting vulnerability in the webmail interface that allows remote attackers to execute arbitrary JavaScript in a victim's browser by crafting a malicious URL. Attackers can inject malicious code through the StartDate parameter in the FreeBusy.aspx form, which is not properly sanitized before being embedded into dynamically generated JavaScript.

AnalysisAI

MailEnable versions prior to 10.55 contain a reflected cross-site scripting (XSS) vulnerability in the webmail interface that allows remote attackers to execute arbitrary JavaScript in a victim's browser without requiring authentication or special privileges. The vulnerability exists in the FreeBusy.aspx form where the StartDate parameter is not properly sanitized before being embedded into dynamically generated JavaScript, enabling attackers to inject malicious code through a crafted URL. …

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Vulnerability AssessmentAI

Risk Assessment	While a precise CVSS vector is not provided, the attack vector is clearly 'Network' (AV:N) and requires no privileges (PR:N) or user interaction beyond clicking a link (UI:R), suggesting a CVSS base score likely in the 6.1–6.5 range (Medium). … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in.
Exploit Scenario	An attacker crafts a malicious URL containing JavaScript code embedded in the StartDate parameter of FreeBusy.aspx (for example, StartDate=<script>alert('xss')</script> or URL-encoded variants) and sends it to a MailEnable webmail user via phishing email or social engineering. When the victim clicks the link while authenticated to MailEnable webmail, the JavaScript executes in their browser context, allowing the attacker to steal the user's session cookie and impersonate them, access their mailbox, or redirect them to a credential harvesting page. …
Remediation	Upgrade MailEnable to version 10.55 or later immediately to patch the XSS vulnerability (see vendor advisory at https://www.mailenable.com/rss/article.asp?Source=RSSADMIN&ID=MAILENABLEVERSION1055). … Detailed patch versions, workarounds, and compensating controls in full report.

Recommended ActionAI

Within 30 days: Identify affected systems and apply vendor patches as part of regular patch cycle. …

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CVE-2026-32852 vulnerability details – vuln.today

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