Medium severity · published May 8, 2017
CVE-2017-0894
Nextcloud Server before 11.0.3 is vulnerable to disclosure of valid share tokens for public calendars due to a logical error
4.3
CVSS
1.2%
EPSS
No
On KEV
Description
Nextcloud Server before 11.0.3 is vulnerable to disclosure of valid share tokens for public calendars due to a logical error. Thus granting an attacker potentially access to publicly shared calendars without knowing the share token.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
Required
Confidentiality
Low
Integrity
None
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)1.2% · higher than 67% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
NS
Nextcloud Server · Nextcloud
before 11.0.3 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2017-0894
CVE.org
https://www.cve.org/CVERecord?id=CVE-2017-0894
Third Party Advisory
https://hackerone.com/reports/218876
Broken Link
https://nextcloud.com/security/advisory/?id=nc-sa-2017-011
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