High severity · published Nov 30, 2021
CVE-2021-41256
nextcloud news-android is an Android client for the Nextcloud news/feed reader app
7.1
CVSS
1.1%
EPSS
No
On KEV
Description
nextcloud news-android is an Android client for the Nextcloud news/feed reader app. In affected versions the Nextcloud News for Android app has a security issue by which a malicious application installed on the same device can send it an arbitrary Intent that gets reflected back, unintentionally giving read and write access to non-exported Content Providers in Nextcloud News for Android. Users should upgrade to version 0.9.9.63 or higher as soon as possible.
CVSS vector
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N
Attack vector
Local
Complexity
Low
Privileges
None
User interaction
Required
Confidentiality
High
Integrity
High
Availability
None
Scope
Unchanged
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
NE
News · Nextcloud
before 0.9.9.63 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2021-41256
CVE.org
https://www.cve.org/CVERecord?id=CVE-2021-41256
Exploit
https://github.com/nextcloud/news-android/blob/master/security/GHSL-2021-1033_Nextcloud_News_for_Android.md
Patch
https://github.com/nextcloud/news-android/commit/05449cb666059af7de2302df9d5c02997a23df85
Patch
https://github.com/nextcloud/news-android/security/advisories/GHSA-2q9v-q3cc-h9f3
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