CVE-2020-18985
An issue in /domain/service/.ewell-known/caldav of Zimbra Collaboration 8.8.12 allows attackers...
An issue in /domain/service/.ewell-known/caldav of Zimbra Collaboration 8.8.12 allows attackers to redirect users to any arbitrary website of their choosing.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- None
- User interaction
- Required
What an attacker can affect
- Confidentiality
- Low
- Integrity
- Low
- Availability
- None
Exploit likelihood
What each source reports
NVD Score used
An issue in /domain/service/.ewell-known/caldav of Zimbra Collaboration 8.8.12 allows attackers to redirect users to any arbitrary website of their choosing.
- Record
CVE-2020-18985- CVSS 3.1
- 6.1 Medium
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N - CVSS 2.0
- 5.8 Medium
AV:N/AC:M/Au:N/C:P/I:P/A:N - Weakness
- CWE-601
- Updated
- 2026-11-02
CVE List No score
An issue in /domain/service/.ewell-known/caldav of Zimbra Collaboration 8.8.12 allows attackers to redirect users to any arbitrary website of their choosing.
- Record
CVE-2020-18985- Updated
- 2026-11-02
EUVDEUVD-2020-10896 No score
An issue in /domain/service/.ewell-known/caldav of Zimbra Collaboration 8.8.12 allows attackers to redirect users to any arbitrary website of their choosing.
- Record
EUVD-2020-10896- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-h95g-226g-7wq6 No score
An issue in /domain/service/.ewell-known/caldav of Zimbra Collaboration 8.8.12 allows attackers...
An issue in /domain/service/.ewell-known/caldav of Zimbra Collaboration 8.8.12 allows attackers to redirect users to any arbitrary website of their choosing.
- Record
GHSA-h95g-226g-7wq6- Weakness
- CWE-601
- Updated
- 2026-11-02
OSV
An issue in /domain/service/.ewell-known/caldav of Zimbra Collaboration 8.8.12 allows attackers to redirect users to any arbitrary website of their choosing.
- Record
CVE-2020-18985- CVSS 3.1
- 6.1 Medium
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N - Updated
- 2026-11-02
Affected products
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2020-18985 is a medium vulnerability (CVSS 6.1) in Synacor Zimbra Collaboration Suite, published December 15, 2021. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.68%, the 52nd percentile. No source names a fixed version.