ZDI-26-811: MailEnable parseObjectResponse XML External Entity Processing Information Disclosure Vulnerability
Source Zero Day Initiative
Not known to be exploited.
Data as of 27 Oct 2026, 20:59 UTC
Rated Medium by Zero Day Initiative · CVSS not yet scored by NVD
Exploitation evidence
Disclosed: evidence found.
Public on cve.org; its publication date is not in this record
Detectable: no evidence on record.
No public nuclei template indexed
Weaponised: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 26 Oct 2026.
What to do
AI-suggested
Since authentication is required, restricting access to trusted users and monitoring for suspicious activity may help reduce risk until a fix is available.
Description
A vulnerability in MailEnable's parseObjectResponse feature allows authenticated remote attackers to disclose sensitive information via XML External Entity processing. The vulnerability has a medium severity rating with a CVSS score of 6.5 assigned by the Zero Day Initiative. Exploitation requires authentication, limiting the attack surface.