SQL injection and unsafe deserialisation vulnerability
Priority MEDIUM 43CWE-89Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Impact type
- SQL injection
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-89.
Summary
A SQL injection and unsafe deserialisation vulnerability in Koollab LMS allowed an authenticated attacker to inject through the manual mark assessment endpoint, control data passed to unserialize(), write a webshell to a publicly accessible location, and execute arbitrary code on the server.
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.0053 45th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Total
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| Three Learning | Koollab LMS | 5.3.2 | — | No fix listed | CNA |
- Koollab LMS VendorThree Learning Affected 5.3.2 Fixed in — No fix listed CNA
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2026-63234
- 2026-10-03 Alias added: GHSA-4q7v-f574-m5cv
References
More Three Learning vulnerabilities
- TI-2026-45107 Pre-authentication error-based SQL injection vulnerability CVSS 3.1CRITICAL 9.1
- TI-2026-45106 Pre-authentication blind SQL injection vulnerability CVSS 3.1CRITICAL 9.1
- TI-2026-45110 SQL injection and unsafe deserialisation vulnerability CVSS 3.1CRITICAL 9.9
- TI-2026-45109 SQL injection and unsafe deserialisation vulnerability CVSS 3.1CRITICAL 9.9
- TI-2026-45108 Post-authentication SQL injection vulnerability CVSS 3.1HIGH 8.1
- TI-2026-45115 Authentication bypass in Three Learning Koollab LMS CVSS 3.1MEDIUM 6.5
Sources
- CVE-2026-63234 · CVE Program
- CVE-2026-63234 · NVD
- FIRST EPSS
- GHSA-4q7v-f574-m5cv · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences