CVSS Meta Temp Score | Current Exploit Price (≈) | CTI Interest Score |
---|---|---|
7.2 | $0-$5k | 0.00 |
A vulnerability classified as critical was found in MyBB up to 1.8.25 (Content Management System). Affected by this vulnerability is an unknown part of the component Poll Vote Count Handler. The manipulation with an unknown input leads to a sql injection vulnerability. The CWE definition for the vulnerability is CWE-89. The product constructs all or part of an SQL command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended SQL command when it is sent to a downstream component. As an impact it is known to affect confidentiality, integrity, and availability.
The weakness was disclosed 03/16/2021. It is possible to read the advisory at github.com. This vulnerability is known as CVE-2021-27946. The technical details are unknown and an exploit is not publicly available. The attack technique deployed by this issue is T1505 according to MITRE ATT&CK. The company Spyse scanned the Internet and collected all possible domain names and their technologies. They just detected over 2k potentially vulnerable domains with MyBB installed.
Upgrading to version 1.8.26 eliminates this vulnerability.
Product
Type
Name
Version
- 1.8.0
- 1.8.1
- 1.8.2
- 1.8.3
- 1.8.4
- 1.8.5
- 1.8.6
- 1.8.7
- 1.8.8
- 1.8.9
- 1.8.10
- 1.8.11
- 1.8.12
- 1.8.13
- 1.8.14
- 1.8.15
- 1.8.16
- 1.8.17
- 1.8.18
- 1.8.19
- 1.8.20
- 1.8.21
- 1.8.22
- 1.8.23
- 1.8.24
- 1.8.25
License
CPE 2.3
CPE 2.2
CVSSv4
VulDB CVSS-B Score: 🔍VulDB CVSS-BT Score: 🔍
VulDB Vector: 🔍
VulDB Reliability: 🔍
CVSSv3
VulDB Meta Base Score: 7.5VulDB Meta Temp Score: 7.4
VulDB Base Score: 6.3
VulDB Temp Score: 6.0
VulDB Vector: 🔍
VulDB Reliability: 🔍
NVD Base Score: 8.8
NVD Vector: 🔍
CVSSv2
AV | AC | Au | C | I | A |
---|---|---|---|---|---|
💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
Vector | Complexity | Authentication | Confidentiality | Integrity | Availability |
---|---|---|---|---|---|
unlock | unlock | unlock | unlock | unlock | unlock |
unlock | unlock | unlock | unlock | unlock | unlock |
unlock | unlock | unlock | unlock | unlock | unlock |
VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍
NVD Base Score: 🔍
Exploiting
Class: Sql injectionCWE: CWE-89 / CWE-74 / CWE-707
CAPEC: 🔍
ATT&CK: 🔍
Local: No
Remote: Yes
Availability: 🔍
Status: Not defined
EPSS Score: 🔍
EPSS Percentile: 🔍
Price Prediction: 🔍
Current Price Estimation: 🔍
0-Day | unlock | unlock | unlock | unlock |
---|---|---|---|---|
Today | unlock | unlock | unlock | unlock |
Threat Intelligence
Interest: 🔍Active Actors: 🔍
Active APT Groups: 🔍
Countermeasures
Recommended: UpgradeStatus: 🔍
0-Day Time: 🔍
Upgrade: MyBB 1.8.26
Timeline
03/04/2021 🔍03/16/2021 🔍
03/16/2021 🔍
04/01/2021 🔍
Sources
Product: mybb.comAdvisory: github.com
Status: Confirmed
CVE: CVE-2021-27946 (🔍)
Entry
Created: 03/16/2021 11:06Updated: 04/01/2021 20:17
Changes: 03/16/2021 11:06 (38), 03/22/2021 08:03 (1), 04/01/2021 20:15 (5), 04/01/2021 20:17 (18)
Complete: 🔍
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