CVE-2017-15806
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…
Does this matter?
EPSS puts the probability of exploitation in the next 30 days at 10.7%, higher than 96% of all known CVEs. Patch or mitigate before the next change window.
Description
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 3.0
- 8.1 HIGHCVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 10.65% probability · 96th percentile
- Public exploits
- 1 in Exploit-DB · verified · first 16 November 2017
- CISA KEV
- Not listed
- Weakness
- CWE-94
- Affected
- zetacomponents/mail
- Source
- cve@mitre.org
EPSS moved from 9.3% on 21 September 2026 to 10.7% on 27 October 2026. The dashed line is the ten per cent mark our analysts treat as “patch before the next change window”.
Public exploits (1)
Entries in Exploit-DB that cite this CVE. Links go to the Exploit-DB page and to the file in the public repository; nothing is hosted here. A verified tick means the Exploit-DB team confirmed the exploit works against the stated version.
References
- http://www.securityfocus.com/bid/101866Third Party Advisory, VDB Entry
- https://github.com/zetacomponents/Mail/issues/58Issue Tracking, Third Party Advisory
- https://github.com/zetacomponents/Mail/releases/tag/1.8.2Issue Tracking, Release Notes, Third Party Advisory
- https://kay-malwarebenchmark.github.io/blog/cve-2017-15806-critical-rce-vulnerability/Issue Tracking, Third Party Advisory
- https://kay-malwarebenchmark.github.io/blog/cve-2017-15806-yuan-cheng-dai-ma-zhi-xing-lou-dong/Issue Tracking, Third Party Advisory
- https://www.exploit-db.com/exploits/43155/Issue Tracking, Third Party Advisory, VDB Entry
- http://www.securityfocus.com/bid/101866Third Party Advisory, VDB Entry
- https://github.com/zetacomponents/Mail/issues/58Issue Tracking, Third Party Advisory
- https://github.com/zetacomponents/Mail/releases/tag/1.8.2Issue Tracking, Release Notes, Third Party Advisory
- https://kay-malwarebenchmark.github.io/blog/cve-2017-15806-critical-rce-vulnerability/Issue Tracking, Third Party Advisory
- https://kay-malwarebenchmark.github.io/blog/cve-2017-15806-yuan-cheng-dai-ma-zhi-xing-lou-dong/Issue Tracking, Third Party Advisory
- https://www.exploit-db.com/exploits/43155/Issue Tracking, Third Party Advisory, VDB Entry
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.