What is the CVSS score of CVE-2024-53991?

CVE-2024-53991 has a CVSS 3.1 base score of 5.9 (Medium). CVSS vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N. EPSS exploitation probability: 25.4%.

Is there a public PoC exploit available for CVE-2024-53991?

Yes, a public proof-of-concept exploit is available for CVE-2024-53991. Prioritise patching immediately. EPSS: 25.4%.

Discourse CVE-2024-53991

MEDIUM

Information Exposure (CWE-200)

2024-12-19 security-advisories@github.com

Information Disclosure Nginx Discourse

5.9

CVSS 3.1 · NVD

Severity by source

NVD PRIMARY

5.9 MEDIUM

AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N

Attack Vector

Network

Attack Complexity

High

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

None

Availability

None

Lifecycle Timeline

CVE Published

Dec 19, 2024 - 20:15 nvd

MEDIUM 5.9

DescriptionNVD

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.

AnalysisAI

Discourse is an open source platform for community discussion. Rated medium severity (CVSS 5.9), this vulnerability is remotely exploitable, no authentication required. No vendor patch available.

Technical ContextAI

This vulnerability is classified as Exposure of Sensitive Information (CWE-200), which allows attackers to access sensitive data that should not be disclosed. 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. Affected products include: Discourse.

RemediationAI

No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Minimize information in error messages, implement proper access controls, encrypt sensitive data at rest and in transit.