MailEnable < 10.55 Reflected XSS via ManageShares.aspx SelectedIndex Parameter
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- Active
- Attack complexity
- Low
- Attack requirements
- None
- Impact type
- Cross-site scripting
- Confidentiality · integrity · availability
- None · None · None
- Fix status
- Fixed
Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-79.
Summary
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.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- Poc
- Automatable
- Yes
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| MailEnable | MailEnable | before 10.55.0 | 10.55.0 | Patch available | CNA |
- MailEnable VendorMailEnable Affected before 10.55.0 Fixed in 10.55.0 Patch available CNA
CPE configurations NVD · 1
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:mailenable:mailenable:*:*:*:*:standard:*:*:* | before 10.55 | Vulnerable | MailEnable |
- cpe:2.3:a:mailenable:mailenable:*:*:*:*:standard:*:*:* Versions before 10.55 Vulnerable ·MailEnable
Remediation
- Fix · CNA MailEnable (MailEnable) Fixed in 10.55.0
Fixed in the same release
Records fixed by the same vendor advisory or release, as the CNA lists them.
- Advisory ·
MailEnable — mailenable.com/rss/article.asp?Source=RSSADMIN&ID=MAILENABL…
3 records Highest priority Priority MEDIUM 3 MEDIUM
Other records, highest priority first
- TI-2026-25315 MailEnable < 10.55 Reflected XSS via FreeBusy.aspx StartDate ParameterPriority MEDIUM 56
- TI-2026-25314 MailEnable < 10.55 Reflected XSS via FreeBusy.aspx StartDate ParameterPriority MEDIUM 56
Timeline
- 2026-10-02 Threatist record created from CVE-2026-32850
- 2026-10-03 Alias added: GHSA-rh96-w7cw-pph4
References
More Mailenable vulnerabilities
- TI-2025-28598 Cross Site Scripting (XSS) vulnerability in MailEnable before v10 allows a remote… CVSS 3.1CRITICAL 9.8
- TI-2026-25315 MailEnable < 10.55 Reflected XSS via FreeBusy.aspx StartDate Parameter CVSS 4.0MEDIUM 5.1
- TI-2026-25314 MailEnable < 10.55 Reflected XSS via FreeBusy.aspx StartDate Parameter CVSS 4.0MEDIUM 5.1
- TI-2015-07656 MailEnable before 8.60 allows Privilege Escalation because admin accounts could be… CVSS 3.0CRITICAL 9.8
- TI-2015-07658 MailEnable before 8.60 allows XXE via an XML document in the request.aspx Options parameter. CVSS 3.1CRITICAL 10.0
- TI-2019-09674 MailEnable Enterprise Premium 10.23 was vulnerable to XML External Entity Injection (XXE)… CVSS 3.0CRITICAL 9.8
Sources
- CVE-2026-32850 · CVE Program
- CVE-2026-32850 · NVD
- FIRST EPSS
- GHSA-rh96-w7cw-pph4 · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences