CVE-2021-40636
OS4ED openSIS 8.0 is affected by SQL Injection in CheckDuplicateName.php, which can extract...
OS4ED openSIS 8.0 is affected by SQL Injection in CheckDuplicateName.php, which can extract information from the database.
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
- None
- Availability
- None
Exploit likelihood
What each source reports
NVD Score used
OS4ED openSIS 8.0 is affected by SQL Injection in CheckDuplicateName.php, which can extract information from the database.
- Record
CVE-2021-40636- CVSS 3.1
- 7.5 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N - CVSS 2.0
- 5.0 Medium
AV:N/AC:L/Au:N/C:P/I:N/A:N - Weakness
- CWE-89
- Updated
- 2026-11-02
CVE List No score
OS4ED openSIS 8.0 is affected by SQL Injection in CheckDuplicateName.php, which can extract information from the database.
- Record
CVE-2021-40636- Updated
- 2026-11-02
EUVDEUVD-2021-27810 No score
OS4ED openSIS 8.0 is affected by SQL Injection in CheckDuplicateName.php, which can extract information from the database.
- Record
EUVD-2021-27810- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-jq36-q2p2-4x9m
OS4ED openSIS 8.0 is affected by SQL Injection in CheckDuplicateName.php, which can extract...
OS4ED openSIS 8.0 is affected by SQL Injection in CheckDuplicateName.php, which can extract information from the database.
- Record
GHSA-jq36-q2p2-4x9m- CVSS 3.1
- 7.5 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N - Weakness
- CWE-89
- Updated
- 2026-11-02
OSV
OS4ED openSIS 8.0 is affected by SQL Injection in CheckDuplicateName.php, which can extract information from the database.
- Record
CVE-2021-40636- CVSS 3.1
- 7.5 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N - Updated
- 2026-11-02
Affected products
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2021-40636 is a high vulnerability (CVSS 7.5) in Os4ed Opensis, published March 3, 2022. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 1.28%, the 70th percentile. No source names a fixed version.