CVE-2026-63231

HIGHPre-NVD 8.18.1—
EchelonGraph scoreMEDIUM confidence

Score 8.1 from GitHub Security Advisory (severity: HIGH) published 2026-07-29. a secondary CVSS source baseline 8.1; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 3 sources updated this week
8.1EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 8.1Exploit: None knownExposed: 0

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

A post-authentication SQL injection vulnerability in Koollab LMS allowed an authenticated attacker to use an error-based SQL oracle via the face-to-face runs update endpoint to read the entire application database and obtain valid JWT tokens for account takeover.

CVSS v3
8.1
EG Score
8.1(medium)
EG Risk
37(Track)
EG Risk 37/100SSVC: 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
Severity81% × 45%
Exploitation0% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
16%
KEV
Not listed

Published

July 29, 2026

Last Modified

July 30, 2026

Advisory Details (1)

Auto-updated Jul 29, 2026
No patch confirmed yet.
generic

Koollab LMS - Multiple Vulnerabilities including Remote Code Execution, SQL Injection, and Authentication Bypass | Cyber Security Agency of Singapore

https://www.csa.gov.sg/alerts-and-advisories/alerts/al-2026-094/

Vendor Advisories for CVE-2026-63231(1)

These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 22× in last 7d / 105× 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.

Showing the most recent 100 of 120 total refreshes for this CVE.

  1. 2026-08-30 01:22 UTCEPSS rescore
  2. 2026-08-29 23:24 UTCEG score recompute
  3. 2026-08-29 23:24 UTCGHSA enrichment
  4. 2026-08-28 21:42 UTCEPSS rescore
  5. 2026-08-27 20:56 UTCEG score recompute
  6. 2026-08-27 20:56 UTCGHSA enrichment
  7. 2026-08-27 14:25 UTCEPSS rescore
  8. 2026-08-27 04:17 UTCGHSA enrichment
  9. 2026-08-26 14:56 UTCEG score recompute
  10. 2026-08-26 14:56 UTCGHSA enrichment
  11. 2026-08-26 14:46 UTCEPSS rescore
  12. 2026-08-26 01:47 UTCEG score recompute
  13. 2026-08-26 01:47 UTCGHSA enrichment
  14. 2026-08-25 13:49 UTCEPSS rescore
  15. 2026-08-25 12:39 UTCGHSA enrichment
  16. 2026-08-24 23:31 UTCEG score recompute
  17. 2026-08-24 23:31 UTCGHSA enrichment
  18. 2026-08-24 10:23 UTCEG score recompute
  19. 2026-08-24 10:23 UTCGHSA enrichment
  20. 2026-08-23 21:15 UTCGHSA enrichment
  21. 2026-08-23 08:07 UTCEG score recompute
  22. 2026-08-23 08:07 UTCGHSA enrichment
  23. 2026-08-23 00:19 UTCEPSS rescore
  24. 2026-08-22 18:58 UTCGHSA enrichment
  25. 2026-08-22 05:50 UTCEG score recompute
Show 75 more
  1. 2026-08-22 05:50 UTCGHSA enrichment
  2. 2026-08-21 23:49 UTCEPSS rescore
  3. 2026-08-21 16:42 UTCGHSA enrichment
  4. 2026-08-21 03:34 UTCEG score recompute
  5. 2026-08-21 03:34 UTCGHSA enrichment
  6. 2026-08-20 22:55 UTCEPSS rescore
  7. 2026-08-20 14:26 UTCGHSA enrichment
  8. 2026-08-20 00:32 UTCEG score recompute
  9. 2026-08-20 00:32 UTCGHSA enrichment
  10. 2026-08-19 17:04 UTCEPSS rescore
  11. 2026-08-19 11:23 UTCGHSA enrichment
  12. 2026-08-18 22:16 UTCEG score recompute
  13. 2026-08-18 22:16 UTCGHSA enrichment
  14. 2026-08-18 13:48 UTCEPSS rescore
  15. 2026-08-18 09:06 UTCGHSA enrichment
  16. 2026-08-17 19:55 UTCEG score recompute
  17. 2026-08-17 19:55 UTCGHSA enrichment
  18. 2026-08-17 13:47 UTCEPSS rescore
  19. 2026-08-17 05:49 UTCGHSA enrichment
  20. 2026-08-16 16:41 UTCEG score recompute
  21. 2026-08-16 16:41 UTCGHSA enrichment
  22. 2026-08-16 14:56 UTCEPSS rescore
  23. 2026-08-16 03:32 UTCEG score recompute
  24. 2026-08-16 03:32 UTCGHSA enrichment
  25. 2026-08-15 14:24 UTCEG score recompute
  26. 2026-08-15 14:24 UTCGHSA enrichment
  27. 2026-08-15 01:30 UTCEPSS rescore
  28. 2026-08-15 01:15 UTCGHSA enrichment
  29. 2026-08-14 12:07 UTCGHSA enrichment
  30. 2026-08-13 22:59 UTCEG score recompute
  31. 2026-08-13 22:59 UTCGHSA enrichment
  32. 2026-08-13 22:00 UTCEPSS rescore
  33. 2026-08-13 09:51 UTCGHSA enrichment
  34. 2026-08-12 20:42 UTCEG score recompute
  35. 2026-08-12 20:42 UTCGHSA enrichment
  36. 2026-08-12 13:51 UTCEPSS rescore
  37. 2026-08-12 07:34 UTCGHSA enrichment
  38. 2026-08-11 18:26 UTCEG score recompute
  39. 2026-08-11 18:26 UTCGHSA enrichment
  40. 2026-08-11 05:18 UTCEG score recompute
  41. 2026-08-11 05:18 UTCGHSA enrichment
  42. 2026-08-11 00:00 UTCEPSS rescore
  43. 2026-08-10 16:10 UTCGHSA enrichment
  44. 2026-08-10 03:02 UTCGHSA enrichment
  45. 2026-08-09 13:54 UTCEG score recompute
  46. 2026-08-09 13:54 UTCGHSA enrichment
  47. 2026-08-09 13:47 UTCEPSS rescore
  48. 2026-08-09 00:46 UTCEG score recompute
  49. 2026-08-09 00:46 UTCGHSA enrichment
  50. 2026-08-08 16:37 UTCEPSS rescore
  51. 2026-08-08 11:38 UTCGHSA enrichment
  52. 2026-08-07 22:29 UTCEG score recompute
  53. 2026-08-07 22:29 UTCGHSA enrichment
  54. 2026-08-07 09:21 UTCGHSA enrichment
  55. 2026-08-06 20:13 UTCEG score recompute
  56. 2026-08-06 20:13 UTCGHSA enrichment
  57. 2026-08-06 13:47 UTCEPSS rescore
  58. 2026-08-06 07:05 UTCEG score recompute
  59. 2026-08-06 07:05 UTCGHSA enrichment
  60. 2026-08-05 19:17 UTCEPSS rescore
  61. 2026-08-05 19:17 UTCEPSS rescore
  62. 2026-08-05 17:57 UTCGHSA enrichment
  63. 2026-08-05 04:49 UTCGHSA enrichment
  64. 2026-08-04 15:31 UTCEG score recompute
  65. 2026-08-04 15:30 UTCGHSA enrichment
  66. 2026-08-04 15:10 UTCEPSS rescore
  67. 2026-08-04 10:39 UTCEPSS rescore
  68. 2026-08-04 02:23 UTCGHSA enrichment
  69. 2026-08-03 13:15 UTCEG score recompute
  70. 2026-08-03 13:15 UTCGHSA enrichment
  71. 2026-08-03 10:36 UTCEPSS rescore
  72. 2026-08-03 00:04 UTCGHSA enrichment
  73. 2026-08-02 10:56 UTCEG score recompute
  74. 2026-08-02 10:56 UTCGHSA enrichment
  75. 2026-08-02 02:27 UTCEPSS rescore

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-63231?
CVE-2026-63231 is a high vulnerability published on July 29, 2026. A post-authentication SQL injection vulnerability in Koollab LMS allowed an authenticated attacker to use an error-based SQL oracle via the face-to-face runs update endpoint to read the entire application database and obtain valid JWT tokens for account takeover.
When was CVE-2026-63231 disclosed?
CVE-2026-63231 was first published in the National Vulnerability Database on July 29, 2026, with the most recent update on July 30, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-63231 actively exploited?
CVE-2026-63231 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0% probability of exploitation in the next 30 days, which ranks it in the top 83.5% of all scored CVEs.
What is the CVSS score of CVE-2026-63231?
CVE-2026-63231 has a CVSS v3 base score of 8.1 (NVD).
How do I remediate CVE-2026-63231?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-63231, 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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