CVE-2020-21527
There is an Arbitrary file deletion vulnerability in halo v1.1.3. A backup function in the...
There is an Arbitrary file deletion vulnerability in halo v1.1.3. A backup function in the background allows a user, when deleting their backup files, to delete any files on the system through directory traversal.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- Low
- User interaction
- None
What an attacker can affect
- Confidentiality
- None
- Integrity
- High
- Availability
- None
Exploit likelihood
What each source reports
NVD Score used
There is an Arbitrary file deletion vulnerability in halo v1.1.3. A backup function in the background allows a user, when deleting their backup files, to delete any files on the system through directory traversal.
- Record
CVE-2020-21527- CVSS 3.1
- 7.7 High
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:H/A:N - CVSS 2.0
- 8.5 High
AV:N/AC:L/Au:S/C:N/I:C/A:C - Weakness
- CWE-22
- Updated
- 2026-11-02
CVE List No score
There is an Arbitrary file deletion vulnerability in halo v1.1.3. A backup function in the background allows a user, when deleting their backup files, to delete any files on the system through directory traversal.
- Record
CVE-2020-21527- Updated
- 2026-11-02
EUVDEUVD-2020-14295 No score
There is an Arbitrary file deletion vulnerability in halo v1.1.3. A backup function in the background allows a user, when deleting their backup files, to delete any files on the system through directory traversal.
- Record
EUVD-2020-14295- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-v2gh-h86w-h9rq No score
There is an Arbitrary file deletion vulnerability in halo v1.1.3. A backup function in the...
There is an Arbitrary file deletion vulnerability in halo v1.1.3. A backup function in the background allows a user, when deleting their backup files, to delete any files on the system through directory traversal.
- Record
GHSA-v2gh-h86w-h9rq- Updated
- 2026-11-02
Affected products
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2020-21527 is a high vulnerability (CVSS 7.7) in Halo, published September 30, 2020. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 1.12%, the 66th percentile. No source names a fixed version.