CVE-2023-1421

Reflected XSS in OAuth flow completion endpoints

View on CVE.org

Published Mar 15, 2023 CVSS 3.1 · 3.5 Low EPSS < 1% KEV · Not listed

Description

A reflected cross-site scripting vulnerability in the OAuth flow completion endpoints in Mattermost allows an attacker to send AJAX requests on behalf of the victim via sharing a crafted link with a malicious state parameter.

Affected Products

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions

Mattermost

Mattermost

unaffected

Version	Status	Constraints
`5.32.0`	affected	< 7.7
`7.7`	unaffected	—

Configuration 1 [-]

cpe:2.3:a:mattermost:mattermost_server:*:*:*:*:*:*:*:*

No data.

No data available yet.

Remediation

Vendor Solution

Update Mattermost to version v7.7 or higher.

Tracking

Sign in to view the affected projects.

Advisories

Source	ID	Title
EUVD	EUVD-2023-23674	A reflected cross-site scripting vulnerability in the OAuth flow completion endpoints in Mattermost allows an attacker to send AJAX requests on behalf of the victim via sharing a crafted link with a malicious state parameter.

Metrics

No CVSS v4.0

Attack Vector Network

Attack Complexity Low

Privileges Required Low

Scope Unchanged

Confidentiality Impact Low

Integrity Impact None

Availability Impact None

User Interaction Required

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

Exploit prediction score: < 1% (0.413% probability within 30 days)

Exploitation none

Automatable no

Technical Impact partial

References

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

History

Dec 6, 2024 11:15 PM Scoring metrics updated View changes

Type	Values Removed	Values Added
Metrics		ssvc `{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}`

Subscriptions

Mattermost Mattermost Server

Weaknesses

CWE-79

Sources

CVE record Updated: Dec 6, 2024, 11:06 PM

Status: PUBLISHED
Assigner: Mattermost
Published: Mar 15, 2023, 10:51 PM
Updated: Dec 6, 2024, 11:06 PM
Reserved: Mar 15, 2023, 10:45 PM

View source JSON

Vulnrichment Updated: Aug 2, 2024, 5:49 AM

Updated: Aug 2, 2024, 5:49 AM

NVD Updated: Jun 17, 2026, 5:27 AM

Status: Modified
Published: Mar 15, 2023, 11:15 PM
Modified: Jun 17, 2026, 5:27 AM

View source JSON

Red Hat No data

No data.

OpenCVE enrichment No data

No data.

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