Reflected XSS via unsanitized StartDate parameter
Published Mar 23, 2026 · Updated Mar 23, 2026
Reflected XSS in the webmail interface in MailEnable before 10.55 allows remote attackers to execute JavaScript through a crafted URL. FreeBusy.aspx embeds the StartDate query parameter into generated JavaScript without sanitizing it, allowing the value to break out of its intended context. A victim must follow the crafted link; the consequence is attacker-controlled script execution in that webmail browser context.
Summary
What happened
Reflected XSS in the webmail interface in MailEnable before 10.55 allows remote attackers to execute JavaScript through a crafted URL. FreeBusy.aspx embeds the StartDate query parameter into generated JavaScript without sanitizing it, allowing the value to break out of its intended context. A victim must follow the crafted link; the consequence is attacker-controlled script execution in that webmail browser context.
The record
- CVE
- CVE-2026-32852
- Published
- Mar 23, 2026
- Updated
- Mar 23, 2026
- Vendor
- MailEnable
- Product
- MailEnable
- Classifications
- CWE-79, T1566.002
- Attack vector
- network
- Privileges
- unauthenticated
Timeline
How it unfolded
- Mar 23, 2026CVE publishedPublication date reported by the CVE source.
- Mar 23, 2026Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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Is a vulnerable build present?
Compare these published version ranges with your installed build and any vendor patches.
- Affected versionversion=0 <10.55
What conditions does exploitation require?
What is affected?
Attacks
What attackers are doing with it
Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.
Weakness, pattern, technique
Public exploit references
- FreeBusy.aspx StartDate reflected-XSS proof of conceptproof of concept · demonstrated
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Technologies
Your stack
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Your stack
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