CVE-2019-9670
Synacor Zimbra Collaboration Suite (ZCS) Improper Restriction of XML External Entity Reference
Synacor Zimbra Collaboration Suite (ZCS)Applications & CMS
CVSS
9.8CriticalExploit odds (EPSS)>99.9%Chance of exploitation activity in the next 30 days, higher than 99.9% of CVEs. Scored 23 Oct 2026FIRST EPSS
Fixed inNone listedNo source names a fixed version. Check the vendor advisory below
CISA required actionApply updates per vendor instructions. CISA KEV
What fixes it
No source in this snapshot names a fixed version. The vendor advisories under References are the place to check.
Timeline
- 13 Mar 2019Exploit code publicMetasploit
- 29 May 2019, 21:04 UTCPublishedCVE List
- 10 Jan 2022Added to CISA KEVCISA KEV
Public exploit code and templates 6
- Exploit moduleZimbra Collaboration Autodiscover Servlet XXE and ProxyServlet SSRF 13 Mar 2019Metasploit
- Remote exploitZimbra Collaboration - Autodiscover Servlet XXE and ProxyServlet SSRF (Metasploit) 12 Apr 2019Exploit-DB
- Remote exploitZimbra Collaboration - Autodiscover Servlet XXE and ProxyServlet SSRF (Metasploit) 12 Apr 2019Exploit-DB
- Remote exploitZimbra Collaboration - Autodiscover Servlet XXE and ProxyServlet SSRF (Metasploit) 12 Apr 2019Exploit-DB
- Remote exploitZimbra Collaboration - Autodiscover Servlet XXE and ProxyServlet SSRF (Metasploit) 12 Apr 2019Exploit-DB
- Scanner templateSynacor Zimbra Collaboration <8.7.11p10 - XML External Entity InjectionNuclei
Listed so defenders can prioritize. Threatline links to the source and does not host exploit code.
Description
Synacor Zimbra Collaboration Suite (ZCS) contains an improper restriction of XML external entity (XXE) vulnerability in the mailboxd component.
Text from CVE List
Affected versions 1
- n/aaffected: n/aCVE List
References 6
- wiki.zimbra.com/wiki/Zimbra_Security_AdvisoriesAdvisoryvia CVE List
- exploit-db.com/exploits/46693/Exploitvia CVE List
- nvd.nist.gov/vuln/detail/CVE-2019-9670Referencevia CISA KEV
- bugzilla.zimbra.com/show_bug.cgi?id=109129Referencevia CVE List
- isc.sans.edu/forums/diary/CVE20199670+Zimbra+Collaboration+Suite+XXE+vulnerability/27570/Referencevia CVE List
- cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2019-9670Referencevia CVE List