CVE-2017-18915

CriticalCVSS 9.8/10Last modified Jun 17, 2026

Description

An issue was discovered in Mattermost Server before 3.8.2, 3.7.5, and 3.6.7. After a restart of a server, an attacker might suddenly gain API Endpoint access.

Metrics

CVSS 3.1 9.8/10CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Weakness enumeration

Affected software

No affected versions have been published.

Timeline

Published
Jun 19, 2020
Last modified
Jun 17, 2026
NVD status
Modified

Related CVEs from 2017

CVE-2017-189165.3An issue was discovered in Mattermost Server before 3.8.2, 3.7.5, and 3.6.7. API endpoint access control does not honor an integration permiCVE-2017-189177.5An issue was discovered in Mattermost Server before 3.8.2, 3.7.5, and 3.6.7. Weak hashing was used for e-mail invitations, OAuth, and e-mailCVE-2017-189184.9An issue was discovered in Mattermost Server before 3.7.3 and 3.6.5. A System Administrator can place a SAML certificate at an arbitrary patCVE-2017-189195.3An issue was discovered in Mattermost Server before 3.7.0 and 3.6.3. Attackers can use the API for unauthenticated team creation.CVE-2017-189209.8An issue was discovered in Mattermost Server before 3.6.2. The WebSocket feature does not follow the Same Origin Policy.CVE-2017-189216.1An issue was discovered in Mattermost Server before 3.6.0 and 3.5.2. XSS can occur via a link on an error page.CVE-2017-189229.8It was discovered that websockets.c in LibVNCServer prior to 0.9.12 did not properly decode certain WebSocket frames. A malicious attacker cCVE-2017-189237.5beroNet VoIP Gateways before 3.0.16 have a PHP script that allows downloading arbitrary files, including ones with credentials.CVE-2017-189247.5oauth2-server (aka node-oauth2-server) through 3.1.1 implements OAuth 2.0 without PKCE. It does not prevent authorization code injection. ThCVE-2017-189255.5opentmpfiles through 0.3.1 allows local users to take ownership of arbitrary files because d entries are mishandled and allow a symlink attaCVE-2017-189267.1raptor_xml_writer_start_element_common in raptor_xml_writer.c in Raptor RDF Syntax Library 2.0.15 miscalculates the maximum nspace declaratiCVE-2017-200017.5The AES encryption project 7.x and 8.x for Drupal does not sufficiently prevent attackers from decrypting data, aka SA-CONTRIB-2017-027. NOT
CVE-2017-18915: Critical severity, CVSS 9.8 | Vulnix