CVE-2021-27948
7.2 High
SQL Injection vulnerability in MyBB before 1.8.26 via User Groups. (issue 3 of 3).
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- High
- User interaction
- None
What an attacker can affect
- Confidentiality
- High
- Integrity
- High
- Availability
- High
Exploit likelihood
1.00%Up 0.6 points since Apr 14, 2021
What each source reports
NVD Score used
SQL Injection vulnerability in MyBB before 1.8.26 via User Groups. (issue 3 of 3).
- Record
CVE-2021-27948- CVSS 3.1
- 7.2 High
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H - CVSS 2.0
- 6.5 Medium
AV:N/AC:L/Au:S/C:P/I:P/A:P - Weakness
- CWE-89
- Updated
- 2026-11-02
CVE List No score
SQL Injection vulnerability in MyBB before 1.8.26 via User Groups. (issue 3 of 3).
- Record
CVE-2021-27948- Updated
- 2026-11-02
EUVDEUVD-2021-14666 No score
SQL Injection vulnerability in MyBB before 1.8.26 via User Groups. (issue 3 of 3).
- Record
EUVD-2021-14666- Updated
- 2026-11-03
Affected products
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases | EUVD | |
| first indexed | CVE List, NVD |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2021-27948 is a high vulnerability (CVSS 7.2) in Mybb, published March 15, 2021. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 1.00%, the 62nd percentile. No source names a fixed version.