CVE-2021-38753
An unrestricted file upload on Simple Image Gallery Web App can be exploited to upload a web...
An unrestricted file upload on Simple Image Gallery Web App can be exploited to upload a web shell and executed to gain unauthorized access to the server hosting the web app.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- None
- User interaction
- None
What an attacker can affect
- Confidentiality
- High
- Integrity
- High
- Availability
- High
Exploit likelihood
What each source reports
NVD Score used
An unrestricted file upload on Simple Image Gallery Web App can be exploited to upload a web shell and executed to gain unauthorized access to the server hosting the web app.
- Record
CVE-2021-38753- CVSS 3.1
- 9.8 Critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - CVSS 2.0
- 7.5 High
AV:N/AC:L/Au:N/C:P/I:P/A:P - Weakness
- CWE-434
- Updated
- 2026-11-02
CVE List No score
An unrestricted file upload on Simple Image Gallery Web App can be exploited to upload a web shell and executed to gain unauthorized access to the server hosting the web app.
- Record
CVE-2021-38753- Updated
- 2026-11-02
EUVDEUVD-2021-25190 No score
An unrestricted file upload on Simple Image Gallery Web App can be exploited to upload a web shell and executed to gain unauthorized access to the server hosting the web app.
- Record
EUVD-2021-25190- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-63q8-3w8v-3263 No score
An unrestricted file upload on Simple Image Gallery Web App can be exploited to upload a web...
An unrestricted file upload on Simple Image Gallery Web App can be exploited to upload a web shell and executed to gain unauthorized access to the server hosting the web app.
- Record
GHSA-63q8-3w8v-3263- Weakness
- CWE-434
- 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-2021-38753 is a critical vulnerability (CVSS 9.8) in Simple Image Gallery Web App Project Image Gallery Web App, published August 16, 2021. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 1.46%, the 73rd percentile. No source names a fixed version.