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CVE-2026-63237: Improper Verification of Cryptographic Signature

🗓️ 29 Jul 2026 00:00:00Reported by Rapid7Type 
rapid7
 rapid7
🔗 www.rapid7.com

TOTP bypass in Koollab LMS via client-controlled seed allows unauthorised admin access.

Related
Refs
ReporterTitlePublishedViews
Family
attackerkb
attackerkb
CVE-2026-63237
29 Jul 202606:25
–attackerkb
cve
CVE
CVE-2026-63237
29 Jul 202606:25
–cve
cvelist
Cvelist
CVE-2026-63237 TOTP two-factor authentication bypass vulnerability
29 Jul 202606:25
–cvelist
euvd
EUVD
EUVD-2026-50132
29 Jul 202606:25
–euvd
nvd
NVD
CVE-2026-63237
29 Jul 202607:16
–nvd
ptsecurity
Positive Technologies
PT-2026-65708
29 Jul 202600:00
–ptsecurity
vulnrichment
Vulnrichment
CVE-2026-63237 TOTP two-factor authentication bypass vulnerability
29 Jul 202606:25
–vulnrichment

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30 Jul 2026 00:00Current
5.8Medium risk
Vulners AI Score5.8
CVSS 3.14.8
EPSS0.00176
SSVC
0