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Vulnerability Intelligence
Miggo AI
Miggo AIMiggo AIMiggo AIRoot Cause AnalysisThe vulnerability, CVE-2025-54463, allows an attacker to crash the Mattermost Confluence plugin by sending a specially crafted request to the server webhook endpoint. My analysis of the patches between the vulnerable version and the fixed version (1.5.0) reveals that the root cause is a lack of proper error handling and nil-pointer checks when processing webhook payloads.
The investigation of commits de0a3d4c9eefa013e7d9f7a18d82eeced63322e6 and 2b4688c3d2a389b9d60f8453078a309f034e9129 confirms this. The primary vulnerable function is handleConfluenceServerWebhook, which is the entry point for the webhook. It failed to handle errors from JSON deserialization, leading to a panic when processing an invalid request body.
Furthermore, even with a structurally valid JSON, other functions deeper in the call stack, such as ConfluenceServerEvent.GetNotificationPost and notification.extractSpaceKeyAndPageID, were susceptible to nil pointer dereferences. This was because they did not validate the presence of optional objects like Page or Comment within the event payload before accessing them, providing another vector for crashing the plugin.
The patches address these issues by adding robust error handling for JSON parsing in handleConfluenceServerWebhook and implementing necessary nil-checks across various functions that process the event data, thus preventing the plugin from crashing.
| Package Name | Ecosystem | Vulnerable Versions | First Patched Version |
|---|---|---|---|
| github.com/mattermost/mattermost-plugin-confluence | go | < 1.5.0 | 1.5.0 |
GoGoKEV Misses 88% of Exploited CVEs- Get the report