CVE-2023-21387
In User Backup Manager, there is a possible way to leak a token to bypass user confirmation for...
In User Backup Manager, there is a possible way to leak a token to bypass user confirmation for backup due to log information disclosure. This could lead to local information disclosure with System execution privileges needed. User interaction is not needed for exploitation.
Attack profile
How easy it is to exploit
- Attack vector
- Local
- Complexity
- Low
- Privileges needed
- High
- User interaction
- None
What an attacker can affect
- Confidentiality
- High
- Integrity
- None
- Availability
- None
Exploit likelihood
What each source reports
NVD Score used
In User Backup Manager, there is a possible way to leak a token to bypass user confirmation for backup due to log information disclosure. This could lead to local information disclosure with System execution privileges needed. User interaction is not needed for exploitation.
- Record
CVE-2023-21387- CVSS 3.1
- 4.4 Medium
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N - Weakness
- CWE-532
- Updated
- 2026-11-02
CVE List No score
In User Backup Manager, there is a possible way to leak a token to bypass user confirmation for backup due to log information disclosure. This could lead to local information disclosure with System execution privileges needed. User interaction is not needed for exploitation.
- Record
CVE-2023-21387- Updated
- 2026-11-02
EUVDEUVD-2023-25555
In User Backup Manager, there is a possible way to leak a token to bypass user confirmation for backup due to log information disclosure. This could lead to local information disclosure with System execution privileges needed. User interaction is not needed for exploitation.
- Record
EUVD-2023-25555- CVSS
- 0.0 None
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N - Updated
- 2026-11-03
GitHub AdvisoriesGHSA-3r8q-7c9h-rfp6
In User Backup Manager, there is a possible way to leak a token to bypass user confirmation for...
In User Backup Manager, there is a possible way to leak a token to bypass user confirmation for backup due to log information disclosure. This could lead to local information disclosure with System execution privileges needed. User interaction is not needed for exploitation.
- Record
GHSA-3r8q-7c9h-rfp6- CVSS 3.1
- 4.4 Medium
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N - Weakness
- CWE-532
- Updated
- 2026-11-02
Affected products
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases, published | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2023-21387 is a medium vulnerability (CVSS 4.4) in Google Android, published October 30, 2023. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.11%, the 1st percentile. No source names a fixed version.