9.8crit
CVE-2018-20160
ZxChat (aka ZeXtras Chat), as used for zimbra-chat and zimbra-talk in Synacor Zimbra Collaboration Suite 8.7 and 8.8 and in other products,…
Published 7 y ago · modified 4 mo ago · JSON
CVSS
9.8
v3.0 · NVD
CISA KEV
No
not known exploited
EPSS
2.2%
percentile 83%
Public exploits
0
none known
Summary
ZxChat (aka ZeXtras Chat), as used for zimbra-chat and zimbra-talk in Synacor Zimbra Collaboration Suite 8.7 and 8.8 and in other products, allows XXE attacks, as demonstrated by a crafted XML request to mailboxd.
Exploit prediction (EPSS)
2.25% probability of exploitation in the next 30 days, higher than 83% of all scored CVEs.
CVSS scores
| Assigned by | Version | Score | Vector |
|---|---|---|---|
| NVD | 3.0 | 9.8 | CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
| NVD | 2.0 | 7.5 | AV:N/AC:L/Au:N/C:P/I:P/A:P |
Classification
- Weakness
- CWE-611 Improper Restriction of XML External Entity Reference
References
- wiki.zimbra.com /wiki/Zimbra_Security_Advisories · x_refsource_MISC, x_transferred
- wiki.zimbra.com /wiki/Security_Center · x_refsource_MISC, x_transferred
- bugzilla.zimbra.com /show_bug.cgi?id=109093 · x_refsource_MISC, x_transferred
Sources
- CVE List: CVE-2018-20160
- NVD: CVE-2018-20160
vulnwire keeps one entry per vulnerability: the CVE id wins, then GHSA; records that alias each other are merged. Machine-readable: JSON.