Arbitrary File Upload Affecting matrix-synapse package, versions [,1.120.2)
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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- published4 Dec 2024
- disclosed3 Dec 2024
- creditUnknown
Introduced: 3 Dec 2024
CVE-2024-53863 (opens in a new tab)How to fix?
Upgrade matrix-synapse to version 1.120.2 or higher.
Overview
matrix-synapse is an ecosystem for open federated Instant Messaging and VoIP.
Affected versions of this package are vulnerable to Arbitrary File Upload due to the dynamic_thumbnails option or processing a specially crafted request. An attacker can exploit this to execute arbitrary code or cause a denial of service by invoking external, potentially untrustworthy decoders.