Archive
19 June 2020
Vulnerabilities first published on this day (UTC), newest first.
193 results · Feed
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Unscored —
An issue was discovered in Mattermost Server before 3.7.0 and 3.6.3. Attackers can use the API for unauthenticated team…
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Medium 4.9
Mattermost Server does not restrict SAML certificate path for System Administrators
An 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 pathname.
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Medium 6.1
Mattermost Server vulnerable to XSS through channel headers
An issue was discovered in Mattermost Server before 4.0.0, 3.10.2, and 3.9.2. XSS could occur via a channel header.
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Medium —
Mattermost Server has Improper Authorization for Integration Requests
An 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 permission restriction.
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High —
Mattermost Server uses weak hashing for OAuth, email verification tokens and invitations
An 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-mail verification tokens.
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High 8.1
Mattermost Server vulnerable to user account takeover when Single Sign-On OAuth2 is used
An issue was discovered in Mattermost Server before 4.0.0, 3.10.2, and 3.9.2, when Single Sign-On OAuth2 is used. An attacker could claim somebody else's account.
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Medium 5.3
Mattermost Server has Insufficient Session Expiration when used as an OAuth 2.0 service provider
An issue was discovered in Mattermost Server before 4.0.0, 3.10.2, and 3.9.2, when used as an OAuth 2.0 service provider, Session invalidation was mishandled.
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Unscored —
An issue was discovered in Mattermost Server before 3.8.2, 3.7.5, and 3.6.7. XSS can occur via a link on an error page.
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Critical 9.8
Mattermost Server password reset email requests can be sent to attacker-provided email addresses
An issue was discovered in Mattermost Server before 4.0.0, 3.10.2, and 3.9.2. A password-reset request was sometime sent to an attacker-provided e-mail address.
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Unscored —
An issue was discovered in Mattermost Server before 3.8.2, 3.7.5, and 3.6.7. An external link can occur on an error pag…
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Critical 9.8
Mattermost Server server restarts may provide attackers with API access
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.
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Medium 5.3CVE-2020-9495 Public exploit
Injection in Apache Archiva
Apache Archiva login service before 2.2.5 is vulnerable to LDAP injection. A attacker is able to retrieve user attribute data from the connected LDAP server by providing special values to the login form. With certain characters it is possible to modify the LD…
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Unscored —
Alpine before 2.23 silently proceeds to use an insecure connection after a /tls is sent in certain circumstances involv…
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High 7.5
Mattermost Server SAML implementation does not require encryption or signature verification as default
An issue was discovered in Mattermost Server before 3.9.0 when SAML is used. Encryption and signature verification are not mandatory.
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Unscored —
An issue was discovered in Mattermost Server before 3.8.2, 3.7.5, and 3.6.7. E-mail notifications can have spoofed link…
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Critical 9.1
Mattermost Server has X.509 Improper Certificate Validation
An issue was discovered in Mattermost Server before 3.8.2, 3.7.5, and 3.6.7. The X.509 certificate validation can be skipped for a TLS-based e-mail server.
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High —
Mattermost Server allows an attacker to specify a full pathname of a log file
An issue was discovered in Mattermost Server before 3.8.2, 3.7.5, and 3.6.7. It allows an attacker to specify a full pathname of a log file.
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Medium 6.1
Mattermost Server vulnerable to XSS via an uploaded file
An issue was discovered in Mattermost Server before 4.0.0, 3.10.2, and 3.9.2. It allows XSS via an uploaded file.
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High 8.8
Mattermost Server vulnerable to CSRF if CORS is enabled
An issue was discovered in Mattermost Server before 4.0.0, 3.10.2, and 3.9.2. CSRF can occur if CORS is enabled.
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Medium 5.3
Mattermost Server exposes team invite IDs through API endpoints
An issue was discovered in Mattermost Server before 4.1.0, 4.0.4, and 3.10.3. It allows attackers to discover team invite IDs via team API endpoints.
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Medium 5.3
Mattermost Server is vulnerable to DoS through maliciously crafted posts
An issue was discovered in Mattermost Server before 4.2.0, 4.1.1, and 4.0.5. It allows crafted posts that potentially cause a web browser to hang.
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Critical 9.8
Mattermost Server is vulnerable CSV Injection
An issue was discovered in Mattermost Server before 4.1.0, 4.0.4, and 3.10.3. It allows CSV injection via a compliance report.
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High 8.8
Mattermost Server does not properly restrict use of slash commands
An issue was discovered in Mattermost Server before 4.3.0, 4.2.1, and 4.1.2. It allows a bypass of restrictions on use of slash commands.
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Medium 5.3
Mattermost Server exposes sensitive user status information via REST API version 4 endpoint
An issue was discovered in Mattermost Server before 4.2.0, 4.1.1, and 4.0.5. It allows attackers to obtain sensitive information (user statuses) via a REST API version 4 endpoint.
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Unscored —
An issue was discovered in Mattermost Server before 4.3.0, 4.2.1, and 4.1.2. XSS could occur via the title_link field o…
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Unscored —
An issue was discovered in Mattermost Server before 4.2.0, 4.1.1, and 4.0.5. It mishandles IP-based rate limiting.
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Medium 5.3
Mattermost Server exposes team creator's e-mail address to other members
An issue was discovered in Mattermost Server before 4.3.0, 4.2.1, and 4.1.2. It discloses the team creator's e-mail address to members.
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Critical 9.8
Mattermost Server is vulnerable to SQL Injection when executing multiple POST requests
An issue was discovered in Mattermost Server before 4.3.0, 4.2.1, and 4.1.2. It allows SQL injection during the fetching of multiple posts.
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Medium 6.1
Mattermost Server is vulnerable to XSS through display name field
An issue was discovered in Mattermost Server before 4.2.0, 4.1.1, and 4.0.5. Display names allow XSS.
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High 8.1
Mattermost Server has intermittent Authorization bypass for resource-owners
An issue was discovered in Mattermost Server before 4.2.0, 4.1.1, and 4.0.5, when used as an OAuth 2.0 service provider. Sometimes. resource-owner authorization is bypassed, allowing account takeover.
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Medium 5.3
Mattermost Server allows attackers to log sensitive information via DEBUG REST API logging endpoint
An issue was discovered in Mattermost Server before 4.2.0, 4.1.1, and 4.0.5. It allows attackers to add DEBUG lines to the logs via a REST API version 3 logging endpoint.
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Medium 6.1
Mattermost Server mishandles redirect denial action
An issue was discovered in Mattermost Server before 4.2.0, 4.1.1, and 4.0.5, when used as an OAuth 2.0 service provider. It mishandles a deny action for a redirection.
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Critical 9.8
Mattermost Server allows attackers to gain privileges by accessing unintended API endpoints with users' credentials
An issue was discovered in Mattermost Server before 4.3.0, 4.2.1, and 4.1.2. It allows attackers to gain privileges by accessing unintended API endpoints on a user's behalf.
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Medium 5.3
Mattermost Server exposes private team invite ID
An issue was discovered in Mattermost Server before 4.1.0, 4.0.4, and 3.10.3. It allows attackers to discover a team invite ID by requesting a JSON document.
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Medium 4.3
Mattermost Server is vulnerable to webhook and slash command manipulation
An issue was discovered in Mattermost Server before 4.3.0, 4.2.1, and 4.1.2. An attacker could create fictive system-message posts via webhooks and slash commands, in the v3 or v4 REST API.
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Medium 4.3
Mattermost Server allows attackers to create buttons that can launch API requests
An issue was discovered in Mattermost Server before 4.3.0, 4.2.1, and 4.1.2. It allows an attacker to create a button that, when pressed by a user, launches an API request.
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Medium 6.1
Mattermost Server does not neutralize HTML content in an Email template field
An issue was discovered in Mattermost Server before 4.2.0, 4.1.1, and 4.0.5. E-mail templates can have a field in which HTML content is not neutralized.
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Medium 6.1
Mattermost Server does not safeguard against phishing via error page links
An issue was discovered in Mattermost Server before 4.2.0, 4.1.1, and 4.0.5. It allows Phishing because an error page can have a link.
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Critical —
Mattermost Server exposes OAuth personal access tokens to attackers
An issue was discovered in Mattermost Server before 4.3.0, 4.2.1, and 4.1.2. It allows attackers to gain privileges by using a registered OAuth application with personal access tokens.
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Medium —
Mattermost Server has low entropy for authorization data as an OAuth 2.0 Service Provider
An issue was discovered in Mattermost Server before 4.3.0, 4.2.1, and 4.1.2, when serving as an OAuth 2.0 Service Provider. There is low entropy for authorization data.