CVE-2020-21554
A File Deletion vulnerability exists in TinyShop 3.1.1 in the back_list parameter in controllers...
A File Deletion vulnerability exists in TinyShop 3.1.1 in the back_list parameter in controllers\admin.php, which could let a malicious user delete any file such as install.lock to reinstall cms.
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
- High
Exploit likelihood
What each source reports
NVD Score used
A File Deletion vulnerability exists in TinyShop 3.1.1 in the back_list parameter in controllers\admin.php, which could let a malicious user delete any file such as install.lock to reinstall cms.
- Record
CVE-2020-21554- CVSS 3.1
- 8.1 High
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H - CVSS 2.0
- 5.5 Medium
AV:N/AC:L/Au:S/C:N/I:P/A:P - Updated
- 2026-11-02
CVE List No score
A File Deletion vulnerability exists in TinyShop 3.1.1 in the back_list parameter in controllers\admin.php, which could let a malicious user delete any file such as install.lock to reinstall cms.
- Record
CVE-2020-21554- Updated
- 2026-11-02
EUVDEUVD-2020-14322 No score
A File Deletion vulnerability exists in TinyShop 3.1.1 in the back_list parameter in controllers\admin.php, which could let a malicious user delete any file such as install.lock to reinstall cms.
- Record
EUVD-2020-14322- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-mp49-872p-4w68
A File Deletion vulnerability exists in TinyShop 3.1.1 in the back_list parameter in controllers...
A File Deletion vulnerability exists in TinyShop 3.1.1 in the back_list parameter in controllers\admin.php, which could let a malicious user delete any file such as install.lock to reinstall cms.
- Record
GHSA-mp49-872p-4w68- CVSS 3.1
- 8.1 High
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H - Updated
- 2026-11-02
Affected products
History
| Recorded | Changed | Sources |
|---|---|---|
| facts | ||
| aliases | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2020-21554 is a high vulnerability (CVSS 8.1) in Tinyrise Tinyshop, published March 25, 2022. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 1.52%, the 74th percentile. No source names a fixed version.
