Vuln Signal Radar
public-safe defensive signal
CRITICALpublic-safe

CVE-2026-63234

NVD: 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...

CVSS
9.9
Severity
CRITICAL
EPSS
0.0029 (22)
KEV
-

Source-published summary

NVD: 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...

Possible impact

Source describes code execution review · SQL injection risk · authenticated boundary. Possible impact: An attacker may be able to run code or commands on affected systems.

Affected context

Affected product or version requires source confirmation.

Remediation / advisory

Remediation reference present; patch status requires confirmation in the linked advisory.

Why it matters

Source describes code execution review · SQL injection risk · authenticated boundary. Possible impact: An attacker may be able to run code or commands on affected systems.; CVSS 9.9 (CRITICAL); EPSS percentile 22; not listed in KEV; Remediation reference present; patch status requires confirmation in the linked advisory; sources: NVD.

What to verify

Confirm affected product/version, vendor advisory, patch or mitigation, and exposure.

Exposure hint

authenticated boundary

Impact tags

code execution reviewSQL injection riskauthenticated boundary review

Urgency reasons

CVSS CRITICALvendor advisory presentrecent update

Source-derived note

Summary derived from NVD description; unsafe procedural detail is not shown.

Redaction metadata

source summary used
True
fallback summary used
False
unsafe procedural detail present
false
raw source displayed
false
public summary redacted
true

Remediation handoff

Public-safe static handoff for human/Codex remediation planning. Scan, patch, external execution, and auto remediation are disabled.

Safety note

This radar shows source-published defensive context only. Exploit procedures, exploit strings, scanner commands, and auto-remediation are not provided.

Official references