CVE-2017-15806
HIGHEPSS 95th pctlDescription
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."
CVSS v3 Vector
Exploitability
Impact
CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
Exploit Intelligence
Very high risk: more likely to be exploited than 95% of all known CVEs.
References
- http://www.securityfocus.com/bid/101866
- https://github.com/zetacomponents/Mail/issues/58
- https://github.com/zetacomponents/Mail/releases/tag/1.8.2
- https://kay-malwarebenchmark.github.io/blog/cve-2017-15806-critical-rce-vulnerability/
- https://kay-malwarebenchmark.github.io/blog/cve-2017-15806-yuan-cheng-dai-ma-zhi-xing-lou-dong/
- https://www.exploit-db.com/exploits/43155/
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Start freeThis product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2026-05-13.