CVE-2023-27265

Disclosure of team owner email address when regenerating Invite ID

LOW

2.7

CVSS Score

Published: February 27, 2023 at 02:46 PM UTC

Updated: June 17, 2026 at 05:44 AM UTC

2 products affected across 1 vendorMattermost ServerMattermost

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Severity

LOW2.7

Exploit prediction

EPSS 0.5%

SSVC

No known exploit

Description

Mattermost fails to honor the ShowEmailAddress setting when constructing a response to the "Regenerate Invite Id" API endpoint, allowing an attacker with team admin privileges to learn the team owner's email address in the response.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Mattermost Server · Mattermost

95%

5.12.0 ≤ v < 7.7.0

Affected range stops below 7.7.0, so it looks safe — our inference, not a vendor statement

Mattermost · Mattermost

60%

5.12.0 ≤ v < 7.7.05.12.0

Affected range stops below 7.7.0, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

Patch and advisory references

https://mattermost.com/security-updates/

References (1)

Vendor Advisory

Source: [email protected]

https://mattermost.com/security-updates/

SSVC — Action Prioritization

SSVCNo known exploitNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

2.7LOWMattermost

Attack Vector: NETWORK
Complexity: LOW
Privileges: HIGH
User Interaction: NONE
Scope: UNCHANGED
Confidentiality: LOW
Integrity: NONE
Availability: NONE

Vector?

Quick Info

StatusMODIFIED

CWE

CWE-200CWE-668

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