Mattermost Confluence Plugin up to 1.4.x Edit Channel Subscription Endpoint missing authentication

CVSS Meta Temp Score
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CTI Interest Score
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6.5$0-$5k0.00

Summaryinfo

A vulnerability identified as critical has been detected in Mattermost Confluence Plugin up to 1.4.x. This affects an unknown part of the component Edit Channel Subscription Endpoint. The manipulation leads to missing authentication. This vulnerability is referenced as CVE-2025-54478. Remote exploitation of the attack is possible. No exploit is available. You should upgrade the affected component.

Detailsinfo

A vulnerability, which was classified as critical, has been found in Mattermost Confluence Plugin up to 1.4.x. This issue affects some unknown functionality of the component Edit Channel Subscription Endpoint. The manipulation with an unknown input leads to a missing authentication vulnerability. Using CWE to declare the problem leads to CWE-306. The product does not perform any authentication for functionality that requires a provable user identity or consumes a significant amount of resources. Impacted is confidentiality, integrity, and availability. The summary by CVE is:

Mattermost Confluence Plugin version <1.5.0 fails to enforce authentication of the user to the Mattermost instance which allows unauthenticated attackers to edit channel subscriptions via API call to the edit channel subscription endpoint.

The weakness was published by Lorenzo Gallegos. It is possible to read the advisory at mattermost.com. The identification of this vulnerability is CVE-2025-54478 since 07/28/2025. The exploitation is known to be easy. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. The technical details are unknown and an exploit is not publicly available.

Upgrading to version 1.5.0 eliminates this vulnerability.

Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

Type

Vendor

Name

Version

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.6
VulDB Meta Temp Score: 6.5

VulDB Base Score: 7.3
VulDB Temp Score: 7.0
VulDB Vector: 🔒
VulDB Reliability: 🔍

NVD Base Score: 5.3
NVD Vector: 🔒

CNA Base Score: 7.2
CNA Vector (Mattermost): 🔒

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Missing authentication
CWE: CWE-306 / CWE-287
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Yes

Availability: 🔒
Status: Not defined

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: Confluence Plugin 1.5.0

Timelineinfo

07/28/2025 CVE reserved
08/11/2025 +14 days Advisory disclosed
08/11/2025 +0 days VulDB entry created
09/24/2025 +44 days VulDB entry last update

Sourcesinfo

Advisory: mattermost.com
Researcher: Lorenzo Gallegos
Status: Confirmed

CVE: CVE-2025-54478 (🔒)
GCVE (CVE): GCVE-0-2025-54478
GCVE (VulDB): GCVE-100-319475

Entryinfo

Created: 08/11/2025 21:58
Updated: 09/24/2025 08:52
Changes: 08/11/2025 21:58 (66), 09/24/2025 08:52 (12)
Complete: 🔍
Cache ID: 216::103

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