MyBB up to 1.8.27 Theme Management Template Name escape output
CVSS Meta Temp Score | Current Exploit Price (≈) | CTI Interest Score |
---|---|---|
5.3 | $0-$5k | 0.00 |
A vulnerability was found in MyBB up to 1.8.27 (Content Management System) and classified as critical. Affected by this issue is some unknown processing of the component Theme Management. The manipulation of the argument Template Name
with an unknown input leads to a escape output vulnerability. Using CWE to declare the problem leads to CWE-116. The product prepares a structured message for communication with another component, but encoding or escaping of the data is either missing or done incorrectly. As a result, the intended structure of the message is not preserved. Impacted is confidentiality, integrity, and availability.
The weakness was published 10/27/2021 as GHSA-gxhv-r3m5-6qv7. The advisory is available at github.com. This vulnerability is handled as CVE-2021-41866 since 10/04/2021. Technical details are known, but there is no available exploit.
Upgrading to version 1.8.28 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
- 1.8.26
- 1.8.27
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: 5.5VulDB Meta Temp Score: 5.3
VulDB Base Score: 5.5
VulDB Temp Score: 5.3
VulDB Vector: 🔍
VulDB Reliability: 🔍
NVD Base Score: 5.4
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: Escape outputCWE: CWE-116 / CWE-74 / CWE-707
ATT&CK: Unknown
Local: No
Remote: Partially
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 1.8.28
Timeline
10/04/2021 🔍10/27/2021 🔍
10/27/2021 🔍
10/31/2021 🔍
Sources
Product: mybb.comAdvisory: GHSA-gxhv-r3m5-6qv7
Status: Confirmed
Confirmation: 🔍
CVE: CVE-2021-41866 (🔍)
Entry
Created: 10/27/2021 07:08Updated: 10/31/2021 07:28
Changes: 10/27/2021 07:08 (41), 10/31/2021 07:16 (2), 10/31/2021 07:22 (16), 10/31/2021 07:28 (1)
Complete: 🔍
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