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4 vulnerabilities found for ms_teams by mattermost
CVE-2026-2476 (GCVE-0-2026-2476)
Vulnerability from nvd – Published: 2026-03-16 11:11 – Updated: 2026-03-16 13:49
VLAI
Title
MS Teams plugin sensitive config values not properly masked in support packets
Summary
Mattermost Plugins versions <=2.0.3.0 fail to properly mask sensitive configuration values which allows an attacker with access to support packets to obtain original plugin settings via exported configuration data. Mattermost Advisory ID: MMSA-2026-00606
Severity
7.6 (High)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-200 - Exposure of Sensitive Information to an Unauthorized Actor
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://mattermost.com/security-updates | vendor-advisory |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Mattermost | Mattermost |
Affected:
0 , ≤ 2.0.3
(semver)
Unaffected: 2.3.1.0 |
Credits
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CVE-2025-27936 (GCVE-0-2025-27936)
Vulnerability from nvd – Published: 2025-04-16 09:14 – Updated: 2025-04-16 14:32
VLAI
Title
Webhook Secret Exposure via Timing attack in MSteams plugin
Summary
Mattermost Plugin MSTeams versions <2.1.0 and Mattermost Server versions 10.5.x <=10.5.1 with the MS Teams plugin enabled fail to perform constant time comparison on a MSTeams plugin webhook secret which allows an attacker to retrieve the webhook secret of the MSTeams plugin via a timing attack during webhook secret comparison.
Severity
5.3 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-208 - Observable Timing Discrepancy
Assigner
References
1 reference
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Mattermost | Mattermost |
Affected:
10.5.0 , ≤ 10.5.1
(semver)
Unaffected: 10.6.0 Unaffected: 10.5.2 |
Credits
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CVE-2026-2476 (GCVE-0-2026-2476)
Vulnerability from cvelistv5 – Published: 2026-03-16 11:11 – Updated: 2026-03-16 13:49
VLAI
Title
MS Teams plugin sensitive config values not properly masked in support packets
Summary
Mattermost Plugins versions <=2.0.3.0 fail to properly mask sensitive configuration values which allows an attacker with access to support packets to obtain original plugin settings via exported configuration data. Mattermost Advisory ID: MMSA-2026-00606
Severity
7.6 (High)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-200 - Exposure of Sensitive Information to an Unauthorized Actor
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://mattermost.com/security-updates | vendor-advisory |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Mattermost | Mattermost |
Affected:
0 , ≤ 2.0.3
(semver)
Unaffected: 2.3.1.0 |
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CVE-2025-27936 (GCVE-0-2025-27936)
Vulnerability from cvelistv5 – Published: 2025-04-16 09:14 – Updated: 2025-04-16 14:32
VLAI
Title
Webhook Secret Exposure via Timing attack in MSteams plugin
Summary
Mattermost Plugin MSTeams versions <2.1.0 and Mattermost Server versions 10.5.x <=10.5.1 with the MS Teams plugin enabled fail to perform constant time comparison on a MSTeams plugin webhook secret which allows an attacker to retrieve the webhook secret of the MSTeams plugin via a timing attack during webhook secret comparison.
Severity
5.3 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-208 - Observable Timing Discrepancy
Assigner
References
1 reference
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Mattermost | Mattermost |
Affected:
10.5.0 , ≤ 10.5.1
(semver)
Unaffected: 10.6.0 Unaffected: 10.5.2 |
Credits
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