Which versions of Mailenable are affected by CVE-2026-32850?

CVE-2026-32850 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-2026-32850?

Yes, a public proof-of-concept exploit is available for CVE-2026-32850. Prioritise patching immediately. EPSS: 0.1%.

How to fix or mitigate CVE-2026-32850?

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-2026-32850

Q: What is the CVSS score of CVE-2026-32850?

CVE-2026-32850 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-2026-14519 MEDIUM

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

2026-03-23 VulnCheck

GHSA-rh96-w7cw-pph4

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

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

Scope

Lifecycle Timeline

PoC Detected

Mar 30, 2026 - 14:34 vuln.today

Public exploit code

EUVD ID Assigned

Mar 23, 2026 - 19:30 euvd

EUVD-2026-14519

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 SelectedIndex parameter in the ManageShares.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 by crafting a malicious URL targeting the ManageShares.aspx form. The SelectedIndex parameter is not properly sanitized before being embedded into dynamically generated JavaScript, enabling attackers to inject and execute malicious code. A publicly available proof-of-concept exploit exists, and a patch has been released by the vendor.

Technical ContextAI

This vulnerability is a reflected XSS flaw classified under CWE-79 (Improper Neutralization of Input During Web Page Generation), which occurs when user-supplied input is not properly encoded or filtered before being rendered in HTML or JavaScript context. The affected product is MailEnable (identified via CPE cpe:2.3:a:mailenable:mailenable:*:*:*:*:*:*:*:*), specifically in the webmail interface's ManageShares.aspx ASP.NET form. The vulnerability exists because the SelectedIndex parameter is directly concatenated into JavaScript code without sanitization, allowing attackers to break out of the intended context and inject arbitrary JavaScript. This is a particularly dangerous variant of XSS because it does not require stored persistence on the server—a single crafted URL can compromise any user who clicks it.

RemediationAI

Upgrade MailEnable to version 10.55 or later immediately, as this version contains the fix for the ManageShares.aspx parameter sanitization issue. Consult the vendor security advisory at https://www.mailenable.com/rss/article.asp?Source=RSSADMIN&ID=MAILENABLEVERSION1055 for download and installation instructions. As an interim mitigation if immediate patching is not possible, restrict access to the MailEnable webmail interface via network controls (firewall or reverse proxy), enforce HTTPS with HSTS to prevent man-in-the-middle injection, and educate users not to click suspicious links containing the ManageShares.aspx endpoint. Consider deploying a Web Application Firewall (WAF) with XSS filtering rules to block injected script payloads in the SelectedIndex parameter.