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Medium severity · published May 12, 2020
CVE-2020-8155
An outdated 3rd party library in the Files PDF viewer for Nextcloud Server 18.0.2 caused a Cross-site scripting vulnerability when opening a malicious PDF
5.4
CVSS
1.1%
EPSS
No
On KEV
Description
An outdated 3rd party library in the Files PDF viewer for Nextcloud Server 18.0.2 caused a Cross-site scripting vulnerability when opening a malicious PDF.
CVSS vector
CVSS:3.1/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)1.1% · higher than 66% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
NS
Nextcloud Server · Nextcloud
before 18.0.3 · source: NVD
Affected product
NS
Nextcloud Server
Nextcloud
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2020-8155
CVE.org
https://www.cve.org/CVERecord?id=CVE-2020-8155
lists.opensuse.org
http://lists.opensuse.org/opensuse-security-announce/2020-05/msg00037.html
lists.opensuse.org
http://lists.opensuse.org/opensuse-security-announce/2020-05/msg00038.html
lists.opensuse.org
http://lists.opensuse.org/opensuse-security-announce/2020-05/msg00040.html
lists.opensuse.org
http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00019.html
lists.fedoraproject.org
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/KC6HLX5SG4PZO6Y54D2LFJ4ATG76BKOP/
Vendor Advisory
https://nextcloud.com/security/advisory/?id=NC-SA-2020-019
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