CVE-2024-53991

HIGHNVD 7.57.5—
EchelonGraph scoreMEDIUM confidence

This high-severity CVE scores 7.5 under NVD CVSS v3. EPSS exploit probability: 25.4%, top 2% of all CVEs by exploit prediction. GitHub Security Advisory data not yet ingested — confidence will rise once GHSA publishes (typical lag: hours to days for open-source ecosystem CVEs; never for infrastructure-only CVEs).

Triggered by: NVD CVSS baseline
Sources: epss, nvd
Elevated
7.5EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 27%CVSS: 7.5Exploit: Elevated riskExposed: 0

No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.

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.

CVSS v3
7.5
EG Score
7.5(medium)
EG Risk
65(Track)
EG Risk 65/100SSVC: Track

EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).

How it’s computed
Severity75% × 45%
Exploitation40% × 40%
Automatability100% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
27%
EPSS %ILE
98%
KEV
Not listed

Published

December 19, 2024

Last Modified

August 26, 2025

References (1)

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Data Freshness Timeline

(refreshed 7× in last 7d / 35× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

  1. 2026-08-07 16:26 UTCEPSS rescore
  2. 2026-08-06 13:45 UTCEPSS rescore
  3. 2026-08-05 19:16 UTCEPSS rescore
  4. 2026-08-04 15:08 UTCEPSS rescore
  5. 2026-08-03 10:35 UTCEPSS rescore
  6. 2026-08-02 02:25 UTCEPSS rescore
  7. 2026-08-02 02:25 UTCEPSS rescore
  8. 2026-08-01 04:14 UTCEPSS rescore
  9. 2026-07-31 08:42 UTCOSV refresh
  10. 2026-07-30 16:26 UTCEPSS rescore
  11. 2026-07-30 16:26 UTCEPSS rescore
  12. 2026-07-30 01:29 UTCEPSS rescore
  13. 2026-07-28 15:35 UTCEPSS rescore
  14. 2026-07-26 14:53 UTCEPSS rescore
  15. 2026-07-25 14:17 UTCEPSS rescore
  16. 2026-07-25 14:17 UTCEPSS rescore
  17. 2026-07-24 14:16 UTCEPSS rescore
  18. 2026-07-23 14:17 UTCEPSS rescore
  19. 2026-07-23 14:17 UTCEPSS rescore
  20. 2026-07-23 02:44 UTCEG score recompute
  21. 2026-07-22 14:07 UTCEPSS rescore
  22. 2026-07-21 15:23 UTCEPSS rescore
  23. 2026-07-20 17:07 UTCEPSS rescore
  24. 2026-07-19 02:28 UTCEPSS rescore
  25. 2026-07-19 02:28 UTCEPSS rescore
Show 65 more
  1. 2026-07-18 10:03 UTCEPSS rescore
  2. 2026-07-16 17:02 UTCEPSS rescore
  3. 2026-07-15 16:57 UTCEPSS rescore
  4. 2026-07-13 22:29 UTCEPSS rescore
  5. 2026-07-13 16:07 UTCOSV refresh
  6. 2026-07-13 06:12 UTCEPSS rescore
  7. 2026-07-12 05:45 UTCEPSS rescore
  8. 2026-07-11 08:26 UTCEPSS rescore
  9. 2026-07-09 19:09 UTCEPSS rescore
  10. 2026-07-09 19:09 UTCEPSS rescore
  11. 2026-07-08 15:14 UTCEPSS rescore
  12. 2026-07-07 13:45 UTCEPSS rescore
  13. 2026-07-07 13:45 UTCEPSS rescore
  14. 2026-07-06 16:26 UTCEPSS rescore
  15. 2026-07-06 16:26 UTCEPSS rescore
  16. 2026-07-06 02:22 UTCEPSS rescore
  17. 2026-07-04 06:30 UTCEPSS rescore
  18. 2026-07-04 06:30 UTCEPSS rescore
  19. 2026-07-01 15:06 UTCEPSS rescore
  20. 2026-06-29 14:05 UTCEPSS rescore
  21. 2026-06-28 14:07 UTCEPSS rescore
  22. 2026-06-28 04:55 UTCEPSS rescore
  23. 2026-06-28 04:55 UTCEPSS rescore
  24. 2026-06-27 03:08 UTCEPSS rescore
  25. 2026-06-27 03:07 UTCEPSS rescore
  26. 2026-06-25 13:49 UTCEPSS rescore
  27. 2026-06-25 13:49 UTCEPSS rescore
  28. 2026-06-25 13:31 UTCOSV refresh
  29. 2026-06-24 14:04 UTCEPSS rescore
  30. 2026-06-24 14:04 UTCEPSS rescore
  31. 2026-06-23 21:32 UTCEPSS rescore
  32. 2026-06-22 14:25 UTCEPSS rescore
  33. 2026-06-22 14:25 UTCEPSS rescore
  34. 2026-06-21 01:59 UTCEPSS rescore
  35. 2026-06-18 17:52 UTCEPSS rescore
  36. 2026-06-18 17:52 UTCEPSS rescore
  37. 2026-06-17 17:52 UTCEPSS rescore
  38. 2026-06-16 17:52 UTCEPSS rescore
  39. 2026-06-15 17:48 UTCEPSS rescore
  40. 2026-06-14 23:17 UTCEPSS rescore
  41. 2026-06-12 23:11 UTCEPSS rescore
  42. 2026-06-12 23:11 UTCEPSS rescore
  43. 2026-06-10 22:18 UTCEPSS rescore
  44. 2026-06-10 22:18 UTCEPSS rescore
  45. 2026-06-08 03:58 UTCOSV refresh
  46. 2026-06-06 13:46 UTCEPSS rescore
  47. 2026-06-06 13:46 UTCEPSS rescore
  48. 2026-06-05 22:46 UTCEPSS rescore
  49. 2026-06-05 22:46 UTCEPSS rescore
  50. 2026-06-04 13:11 UTCEPSS rescore
  51. 2026-06-04 13:11 UTCEPSS rescore
  52. 2026-06-02 20:12 UTCEPSS rescore
  53. 2026-06-02 20:12 UTCEPSS rescore
  54. 2026-06-01 13:51 UTCEPSS rescore
  55. 2026-06-01 13:51 UTCEPSS rescore
  56. 2026-06-01 13:51 UTCEPSS rescore
  57. 2026-05-31 22:30 UTCEPSS rescore
  58. 2026-05-31 22:30 UTCEPSS rescore
  59. 2026-05-31 00:16 UTCEPSS rescore
  60. 2026-05-31 00:16 UTCEPSS rescore
  61. 2026-05-29 13:43 UTCEPSS rescore
  62. 2026-05-28 13:44 UTCEPSS rescore
  63. 2026-05-28 13:44 UTCEPSS rescore
  64. 2026-05-28 13:44 UTCEPSS rescore
  65. 2026-05-23 16:12 UTCEG score recompute

Publicly available exploits

(1 reference)

Working exploit code is in the public domain. Defenders should treat patch urgency accordingly — public PoCs typically lead to mass-exploitation within 24-72 hours.

  • Nucleihttp/cves/2024/CVE-2024-53991.yaml
    First seen Jan 1, 2024

    Discourse Backup File Disclosure Via Default Nginx Configuration

    Open source ↗

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2024-53991?
CVE-2024-53991 is a high vulnerability published on December 19, 2024. 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…
When was CVE-2024-53991 disclosed?
CVE-2024-53991 was first published in the National Vulnerability Database on December 19, 2024, with the most recent update on August 26, 2025. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2024-53991 actively exploited?
CVE-2024-53991 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 27% probability of exploitation in the next 30 days, which ranks it in the top 2.2% of all scored CVEs.
What is the CVSS score of CVE-2024-53991?
CVE-2024-53991 has a CVSS v3 base score of 7.5 (NVD).
How do I remediate CVE-2024-53991?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2024-53991, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

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