CVE intelligence and bounded remediation

CVE-2022-2706 — A vulnerability classified as critical has been found in SourceCodester Online Class and Exam Scheduling System 1.0

Critical CVSS 9.8

A vulnerability classified as critical has been found in SourceCodester Online Class and Exam Scheduling System 1.0. Affected is an unknown function of the file /pages/class_sched.php. The manipulation of the argument class with the input '||(SELECT 0x684d6b6c WHERE 5993=5993 AND (SELECT 2096 FROM(SELECT COUNT(*),CONCAT(0x717a786b71,(SELECT (ELT(2096=2096,1))),0x717a626271,FLOOR(RAND(0)*2))x FROM INFORMATION_SCHEMA.PLUGINS GROUP BY x)a))||' leads to sql injection. It is possible to launch the attack remotely. The exploit has been disclosed to the public and may be used. VDB-205830 is the identifier assigned to this vulnerability.

Severity
Critical
CVSS
9.8 (3.1)
Published
2022-08-08
CISA KEV
Not currently listed
Ecosystem
software/application
Weaknesses
CWE-89

Affected products

  • fabian / online_class_and_exam_scheduling_system / 1.0

Matched remediation archetype

SQL and data-query injection

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Check exposure

  • Trace request, message, file, and stored values into SQL, ORM query fragments, filters, sort expressions, and other data-query languages.
  • Inventory database roles, reachable schemas, multi-tenant boundaries, and whether stacked or administrative operations are enabled.
  • Check both direct queries and second-order use of previously stored values.

Remediate safely

  • Use parameterized queries or safe query builders for all values; map identifiers and operators through explicit allowlists.
  • Remove raw query concatenation and give the application account only the tables and operations it requires.
  • Update affected data-access components and add regression tests for query structure preservation with inert edge-case inputs.

Authoritative sources

Complete CVE record and remediation plan

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