CVE-2021-41256
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…
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (1.08%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
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 3.1
- 7.1 HIGHCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N
- EPSS
- 1.08% probability · 63th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-829
- Affected
- nextcloud/news
- Source
- security-advisories@github.com
References
- https://github.com/nextcloud/news-android/blob/master/security/GHSL-2021-1033_Nextcloud_News_for_Android.mdExploit, Third Party Advisory
- https://github.com/nextcloud/news-android/commit/05449cb666059af7de2302df9d5c02997a23df85Patch, Third Party Advisory
- https://github.com/nextcloud/news-android/security/advisories/GHSA-2q9v-q3cc-h9f3Patch, Third Party Advisory
- https://github.com/nextcloud/news-android/blob/master/security/GHSL-2021-1033_Nextcloud_News_for_Android.mdExploit, Third Party Advisory
- https://github.com/nextcloud/news-android/commit/05449cb666059af7de2302df9d5c02997a23df85Patch, Third Party Advisory
- https://github.com/nextcloud/news-android/security/advisories/GHSA-2q9v-q3cc-h9f3Patch, Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.