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Case File

CVE-2024-53991

HIGH · CVSS 7.5 EPSS 25.43% Public Exploit

Source: NVD + CISA KEV + EPSS (historical backfill) · Published 2024-12-19 · Last synced 2026-08-04

CyberRota Analysis

This is a high severity vulnerability with a CVSS score of 7.5. It affects Nginx. Public exploit code or proof-of-concept references have been detected in its references. Its EPSS score suggests a 25.4% probability of exploitation in the next 30 days.

Public Exploit Signal

A public exploit, PoC, GitHub repository or Metasploit reference was detected for this CVE.

GitHub PoC Links

Note: these links are listed for security research and verification purposes only.

CVE
CVE-2024-53991
Severity
HIGH
CVSS
7.5
EPSS
25.43%
Nginx

Original NVD Description

Discourse is an open source platform for community discussion. This vulnerability only impacts Discourse instances configured to use `FileStore::LocalStore` which means uploads and backups are stored locally on disk. If an attacker knows the name of the Discourse backup file, the attacker can trick nginx into sending the Discourse backup file with a well crafted request. This issue is patched in the latest stable, beta and tests-passed versions of Discourse. Users are advised to upgrade. Users unable to upgrade can either 1. Download all local backups on to another storage device, disable the `enable_backups` site setting and delete all backups until the site has been upgraded to pull in the fix. Or 2. Change the `backup_location` site setting to `s3` so that backups are stored and downloaded directly from S3.

Related CVEs

Other vulnerabilities affecting the same vendor(s)