THREATPORT/VULNERABILITY/CVE-2017-15806
HIGH SEVERITY

CVE-2017-15806

Mail vulnerability

CVSS
8.1
EPSS
10.7%
EPSS pct
95th
Exploited
No known
The send function in the ezcMailMtaTransport class in Zeta Components Mail before 1.8.2 does not properly restrict the set of characters used in the ezcMail returnPath property, which might allow remote attackers to execute arbitrary code via a crafted email address, as demonstrated by one containing "-X/path/to/wwwroot/file.php."
Affected vendor
Zetacomponents
Affected product
Mail
CVSS vector
CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
Weakness type (CWE)
Published
2017-11-15

Risk analysis

Based on its CVSS vector, this vulnerability is exploitable over the network, high attack complexity, requiring no privileges, no user interaction. Successful exploitation leads to high impact to confidentiality, high impact to integrity, high impact to availability.

Its EPSS score of 10.7% reflects a moderate probability of exploitation activity in the wild over the next 30 days, placing it above 95% of all scored CVEs.

Check your external exposure to CVE-2017-15806

  • Confirm whether Zetacomponents Mail is running on any internet-facing host or subdomain.
  • Match discovered service fingerprints against the version affected by CVE-2017-15806.
  • Prioritise remediation if the asset is public, business-critical, or near authentication/payment flows.

How ThreatPort helps with CVE-2017-15806

ThreatPort's external attack surface scanner checks your internet-facing assets — agentlessly, from the outside in — for the exposed services and versions that CVE-2017-15806 affects, then prioritises the finding by real risk using CISA KEV and FIRST.org EPSS.

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