Medium severity · published May 8, 2017
CVE-2017-0891
Nextcloud Server before 9.0.58 and 10.0.5 and 11.0.3 are vulnerable to an inadequate escaping of error messages leading to XSS vulnerabilities in multiple components
5.4
CVSS
0.6%
EPSS
No
On KEV
Description
Nextcloud Server before 9.0.58 and 10.0.5 and 11.0.3 are vulnerable to an inadequate escaping of error messages leading to XSS vulnerabilities in multiple components.
CVSS vector
CVSS:3.0/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
Required
Confidentiality
Low
Integrity
Low
Availability
None
Scope
Changed
Exploitation
Is it being used?
Exploit prediction (EPSS)0.6% · higher than 51% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
NS
Nextcloud Server · Nextcloud
before 9.0.58; 10.0.0 before 10.0.5; 11.0.0 before 11.0.3 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2017-0891
CVE.org
https://www.cve.org/CVERecord?id=CVE-2017-0891
Third Party Advisory
https://hackerone.com/reports/216812
Vendor Advisory
https://nextcloud.com/security/advisory/?id=nc-sa-2017-008
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