CVE-2026-63233SQL injection and unsafe deserialisation vulnerability
Updated under an hour ago ()
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It affects Three Learning Koollab LMS. Add what you run to find out whether that includes you.
No exploitation reported and no EPSS estimate yet.
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A SQL injection and unsafe deserialisation vulnerability in Koollab LMS allowed an authenticated attacker to inject through the assessment overall answer endpoint, control data passed to unserialize(), write a webshell to a publicly accessible location, and execute arbitrary code on the server.
- CVSS
- 9.9 CRITICAL (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
- Weakness (CWE)
- CWE-89
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- CSA
- NVD analysis
- Deferred
- Record last updated
- Jul 29, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
Three Learning Koollab LMS three_learning:koollab_lms (from the name) | 5.3.2 | CNA record |
References
- https://www.csa.gov.sg/alerts-and-advisories/alerts/al-2026-094/
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.