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CVE-2024-53991

36
FAUCET Score

CVE-2024-53991 is a high-severity information disclosure vulnerability affecting Discourse instances configured to use local file storage for backups. An attacker can exploit a misconfiguration in Nginx to download Discourse backup files if the backup file name is known, leading to the potential exposure of sensitive data. The vulnerability has a CVSS score of 5.9 (MEDIUM) due to its high impact on confidentiality, but requires high attack complexity. While there is no evidence of active exploitation, a Nuclei template exists, and its EPSS score indicates a higher-than-average probability of exploitation.

Impacted Technologies

VendorProductVersion(s)CPE
< 3.3.2CPE matchmatch criteria
cpe:2.3:a:discourse:discourse:*:*:*:*:stable:*:*:*
< 3.4.0CPE matchmatch criteria
cpe:2.3:a:discourse:discourse:*:*:*:*:beta:*:*:*
3.4.0CPE matchmatch criteria
cpe:2.3:a:discourse:discourse:3.4.0:beta1:*:*:beta:*:*:*
3.4.0CPE matchmatch criteria
cpe:2.3:a:discourse:discourse:3.4.0:beta2:*:*:beta:*:*:*
3.4.0CPE matchmatch criteria
cpe:2.3:a:discourse:discourse:3.4.0:beta3:*:*:beta:*:*:*

CVSS Data

CVSS version used by this source: 3.1

7.5HIGH

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
NONE
Availability Impact
NONE
Exploitability Score
3.9
Impact Score
3.6
CvssVersion
3.1

Exploit Intelligence

EPSS Score
25.43%
Probability of exploitation in next 30 days
EPSS Percentile
97.7%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
Nuclei: CVE-2024-53991 · Mar 20, 2025
This CVE's current EPSS score of 0.2543 is in the 98th percentile among its peer group of 19,958 CVEs.

Social Chatter

No social media mentions found for this CVE.

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.0 Bluesky, 0.0 Mastodon, and 0.2 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.0 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Vendor Patches (1)

github_advisoryworkaround availablevia nvd_reference
View patch

References

github.com / discourse/discourse/security/advisories/GHSA-567m-82f6-56rv
MitigationThird Party Advisory