Mattermost up to 7.8.12/8.1.3/9.0.1/9.1.0 Permalink information disclosure
CVSS Meta Temp Score | Current Exploit Price (≈) | CTI Interest Score |
---|---|---|
4.2 | $0-$5k | 0.00 |
A vulnerability was found in Mattermost up to 7.8.12/8.1.3/9.0.1/9.1.0. It has been classified as problematic. This affects some unknown processing of the component Permalink Handler. The manipulation with an unknown input leads to a information disclosure vulnerability. CWE is classifying the issue as CWE-200. The product exposes sensitive information to an actor that is not explicitly authorized to have access to that information. This is going to have an impact on confidentiality. The summary by CVE is:
Mattermost fails to check whether the “Allow users to view archived channels” setting is enabled during permalink previews display, allowing members to view permalink previews of archived channels even if the “Allow users to view archived channels” setting is disabled.
The weakness was disclosed 11/27/2023 by Harrison Healey. It is possible to read the advisory at mattermost.com. This vulnerability is uniquely identified as CVE-2023-43754 since 11/22/2023. The technical details are unknown and an exploit is not publicly available. The attack technique deployed by this issue is T1592 according to MITRE ATT&CK.
Upgrading to version 7.8.13, 8.1.4, 9.0.2 or 9.1.1 eliminates this vulnerability.
Product
Type
Name
Version
- 7.8.0
- 7.8.1
- 7.8.2
- 7.8.3
- 7.8.4
- 7.8.5
- 7.8.6
- 7.8.7
- 7.8.8
- 7.8.9
- 7.8.10
- 7.8.11
- 7.8.12
- 8.1.0
- 8.1.1
- 8.1.2
- 8.1.3
- 9.0
- 9.0.0
- 9.0.1
- 9.1
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: 4.3VulDB Meta Temp Score: 4.2
VulDB Base Score: 4.3
VulDB Temp Score: 4.1
VulDB Vector: 🔍
VulDB Reliability: 🔍
CNA Base Score: 4.3
CNA Vector (Mattermost, Inc.): 🔍
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: 🔍
Exploiting
Class: Information disclosureCWE: CWE-200 / CWE-284 / CWE-266
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: Mattermost 7.8.13/8.1.4/9.0.2/9.1.1
Timeline
11/22/2023 🔍11/27/2023 🔍
11/27/2023 🔍
12/16/2023 🔍
Sources
Advisory: mattermost.comResearcher: Harrison Healey
Status: Confirmed
CVE: CVE-2023-43754 (🔍)
Entry
Created: 11/27/2023 10:59 AMUpdated: 12/16/2023 08:08 PM
Changes: 11/27/2023 10:59 AM (49), 12/16/2023 08:08 PM (1)
Complete: 🔍
Cache ID: 18:858:40
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