Vulnerability database
Every flaw the U.S. government’s cybersecurity agency (CISA) has confirmed attackers are using, plus the new WordPress plugin and theme bugs published each day, sorted by what they mean for a small business. We refresh it twice a day. If you see something your website or office runs, tell us.
14 results
Feb 6, 2026Mattermost Confluence plugin version <1.7.0 fails to properly escape user-controlled display names in HTML template rendering which allows authenticated ConflueCVE-2025-13523 · Websites & servers · Mattermost · reported by responsibledisclosure@mattermost.comHigh 7.7
Mattermost Confluence plugin version <1.7.0 fails to properly escape user-controlled display names in HTML template rendering which allows authenticated Confluence users with malicious display names to execute arbitrary JavaScript in victim browsers via sending a specially crafted OAuth2 connection link that, when visited, renders the attacker's display name without proper sanitization. Mattermost Advisory ID: MMSA-2025-00557
- Product
- Mattermost Confluence Plugin
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Aug 11, 2025Mattermost Confluence Plugin version <1.5.0 fails to check the access of the user to the channel which allows attackers to create channel subscription without pCVE-2025-8285 · Websites & servers · Mattermost · reported by responsibledisclosure@mattermost.comMedium 4
Mattermost Confluence Plugin version <1.5.0 fails to check the access of the user to the channel which allows attackers to create channel subscription without proper access to the channel via API call to the create channel subscription endpoint.
- Product
- Mattermost Confluence Plugin
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Aug 11, 2025Mattermost Confluence Plugin version <1.5.0 fails to handle unexpected request body which allows attackers to crash the plugin via constant hit to create channeCVE-2025-54525 · Websites & servers · Mattermost · reported by responsibledisclosure@mattermost.comHigh 7.5
Mattermost Confluence Plugin version <1.5.0 fails to handle unexpected request body which allows attackers to crash the plugin via constant hit to create channel subscription endpoint with an invalid request body.
- Product
- Mattermost Confluence Plugin
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Aug 11, 2025Mattermost Confluence Plugin version <1.5.0 fails to enforce authentication of the user to the Mattermost instance which allows unauthenticated attackers to ediCVE-2025-54478 · Websites & servers · Mattermost · reported by responsibledisclosure@mattermost.comHigh 7.2
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.
- Product
- Mattermost Confluence Plugin
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Aug 11, 2025Mattermost Confluence Plugin version <1.5.0 fails to handle unexpected request body which allows attackers to crash the plugin via constant hit to server webhooCVE-2025-54463 · Websites & servers · Mattermost · reported by responsibledisclosure@mattermost.comMedium 5.9
Mattermost Confluence Plugin version <1.5.0 fails to handle unexpected request body which allows attackers to crash the plugin via constant hit to server webhook endpoint with an invalid request body.
- Product
- Mattermost Confluence Plugin
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Aug 11, 2025Mattermost Confluence Plugin version <1.5.0 fails to check the access of the user to the Confluence space which allows attackers to create a subscription for a CVE-2025-54458 · Websites & servers · Mattermost · reported by responsibledisclosure@mattermost.comMedium 5
Mattermost Confluence Plugin version <1.5.0 fails to check the access of the user to the Confluence space which allows attackers to create a subscription for a Confluence space the user does not have access to via the create subscription endpoint.
- Product
- Mattermost Confluence Plugin
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Aug 11, 2025Mattermost Confluence Plugin version <1.5.0 fails to check the access of the user to the channel which allows attackers to create a channel subscription withoutCVE-2025-53910 · Websites & servers · Mattermost · reported by responsibledisclosure@mattermost.comMedium 4
Mattermost Confluence Plugin version <1.5.0 fails to check the access of the user to the channel which allows attackers to create a channel subscription without proper access to the channel via API call to the edit channel subscription endpoint.
- Product
- Mattermost Confluence Plugin
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Aug 11, 2025Mattermost Confluence Plugin version <1.5.0 fails to check the access of the user to the channel which allows attackers to get channel subscription details withCVE-2025-53857 · Websites & servers · Mattermost · reported by responsibledisclosure@mattermost.comLow 3.7
Mattermost Confluence Plugin version <1.5.0 fails to check the access of the user to the channel which allows attackers to get channel subscription details without proper access to the channel via API call to the GET autocomplete/GetChannelSubscriptions endpoint.
- Product
- Mattermost Confluence Plugin
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Aug 11, 2025Mattermost Confluence Plugin version <1.5.0 fails to handle unexpected request body which allows attackers to crash the plugin via constant hit to server webhooCVE-2025-53514 · Websites & servers · Mattermost · reported by responsibledisclosure@mattermost.comMedium 5.9
Mattermost Confluence Plugin version <1.5.0 fails to handle unexpected request body which allows attackers to crash the plugin via constant hit to server webhook endpoint with an invalid request body.
- Product
- Mattermost Confluence Plugin
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Aug 11, 2025Mattermost Confluence Plugin version <1.5.0 fails to handle unexpected request body which allows attackers to crash the plugin via constant hit to update channeCVE-2025-52931 · Websites & servers · Mattermost · reported by responsibledisclosure@mattermost.comHigh 7.5
Mattermost Confluence Plugin version <1.5.0 fails to handle unexpected request body which allows attackers to crash the plugin via constant hit to update channel subscription endpoint with an invalid request body.
- Product
- Mattermost Confluence Plugin
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Aug 11, 2025Mattermost Confluence Plugin version <1.5.0 fails to enforce authentication of the user to the Mattermost instance which allows unauthenticated attackers to accCVE-2025-49221 · Websites & servers · Mattermost · reported by responsibledisclosure@mattermost.comLow 3.7
Mattermost Confluence Plugin version <1.5.0 fails to enforce authentication of the user to the Mattermost instance which allows unauthenticated attackers to access subscription details without via API call to GET subscription endpoint.
- Product
- Mattermost Confluence Plugin
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Aug 11, 2025Mattermost Confluence Plugin version <1.5.0 fails to check the access of the user to the Confluence space which allows attackers to edit a subscription for a CoCVE-2025-48731 · Websites & servers · Mattermost · reported by responsibledisclosure@mattermost.comMedium 6.4
Mattermost Confluence Plugin version <1.5.0 fails to check the access of the user to the Confluence space which allows attackers to edit a subscription for a Confluence space the user does not have access for via edit subscription endpoint.
- Product
- Mattermost Confluence Plugin
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Aug 11, 2025Mattermost Confluence Plugin version <1.5.0 fails to check the authorization of the user to the Mattermost instance which allows attackers to create a channel sCVE-2025-44004 · Websites & servers · Mattermost · reported by responsibledisclosure@mattermost.comHigh 7.2
Mattermost Confluence Plugin version <1.5.0 fails to check the authorization of the user to the Mattermost instance which allows attackers to create a channel subscription without proper authorization via API call to the create channel subscription endpoint.
- Product
- Mattermost Confluence Plugin
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Aug 11, 2025Mattermost Confluence Plugin version <1.5.0 fails to check the access of the user to the channel which allows attackers to get channel subscription details withCVE-2025-44001 · Websites & servers · Mattermost · reported by responsibledisclosure@mattermost.comMedium 4
Mattermost Confluence Plugin version <1.5.0 fails to check the access of the user to the channel which allows attackers to get channel subscription details without proper access to the channel via API call to the Get Channel Subscriptions details endpoint.
- Product
- Mattermost Confluence Plugin
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Where this comes from: the exploited list is CISA’s Known Exploited Vulnerabilities catalog. Everything else is the whole National Vulnerability Database, where each record is published by the team that found the bug (Wordfence, Patchstack, WPScan, the vendors themselves and others); we show who. Exploit odds are FIRST’s EPSS, updated daily. Titles and categories are ours, so check the linked record before acting on a detail. For a write-up of the big ones, see our advisories. Every vendor, and every WordPress plugin and theme with a recorded flaw, also has its own page. All of it is free to reuse as JSON, CSV or RSS.
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