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CVE Record

CVE-2026-9484: SourceCodester Student Grades Management System classroom.php removeStudentFromClassroom improper authorization

A vulnerability was determined in SourceCodester Student Grades Management System 1.0. Affected by this vulnerability is the function getClassroomStudents/removeStudentFromClassroom of the file classroom.php. Executing a manipulation of the argument classroom_id can lead to improper authorization. The attack may be launched remotely. The exploit has been publicly disclosed and may be utilized.

MediumCVSS 6.5Not KEV-listed Updated
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Glexia's Take moderate

Analyst readout for executives and security teams

Plain-English summary

A logged-in user may be able to remove students from a classroom they should not control by changing a classroom identifier. For affected deployments, this could disrupt class and grade management records and weaken trust in student administration data.

Executive priority

Treat as a moderate, targeted business risk. Prioritize if the system manages real student records, is internet-facing, or has many semi-trusted users.

Technical view

CVE-2026-9484 affects SourceCodester Student Grades Management System 1.0 in classroom.php, specifically getClassroomStudents/removeStudentFromClassroom. Manipulating classroom_id can cause improper authorization. The CVSS v2 score is 6.5 with network access, low complexity, and authentication required.

Likely exposure

Exposure is limited to organizations running SourceCodester Student Grades Management System 1.0, especially if the application is reachable over the network and authenticated users can access classroom management functions.

Exploitation context

The source bundle says an exploit has been publicly disclosed and may be used. It does not show CISA KEV listing or confirmed active exploitation, so active exploitation should not be assumed.

Researcher notes

Evidence is centered on VulDB and the CVE bundle. The weakness is improper authorization, not unauthenticated remote code execution. Public exploit disclosure raises urgency, but exploitation-in-the-wild evidence is not provided.

Mitigation direction

  • Check SourceCodester or project guidance for a fixed release or vendor workaround.
  • Restrict access to the application to trusted networks and required users only.
  • Review classroom.php authorization checks before allowing student removal actions.
  • If maintaining code, enforce server-side ownership or role checks on classroom_id.
  • Back up student and classroom records before remediation work.

Validation and detection

  • Inventory whether Student Grades Management System 1.0 is deployed.
  • Confirm classroom.php exists and includes the affected removal functionality.
  • Review application logs for unusual classroom membership changes.
  • Test authorization behavior only in an approved non-production environment.
  • Verify authenticated users cannot alter classrooms outside their permissions.
Prepared
Confidence
medium
Sources
7

Public sources used

Based on public source material and reviewed before publication.

Potential ATT&CK relevance

Conservative CVE-to-ATT&CK context

These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.

ATT&CK lookup starting points

Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.

cwe · low confidence lookup

CWE-266: Exact CWE lookup

Use the exact CWE identifier as the starting point before reviewing related ATT&CK behavior. Open the exact CWE lookup page first, then review the ATT&CK searches from that MITRE weakness context. This is a Glexia lookup hint, not an official ATT&CK mapping.

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cwe · low confidence lookup

CWE-285: Exact CWE lookup

Use the exact CWE identifier as the starting point before reviewing related ATT&CK behavior. Open the exact CWE lookup page first, then review the ATT&CK searches from that MITRE weakness context. This is a Glexia lookup hint, not an official ATT&CK mapping.

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cve · low confidence lookup

CVE-2026-9484 mapping review

Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.

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Vulnerability profile CVE Program record
Severity
Medium
CVSS
6.5 (2.0)
Known Exploited
No
Published

Vector: AV:N/AC:L/Au:S/C:P/I:P/A:P/E:POC/RL:ND/RC:UR

Official CVE source material

CNA and ADP enrichment extracted from CVE v5

These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.

4 CVSS vectors
6 Timeline events
1 ADP providers
8 Source links

SSVC decision data

CISA-ADP CISA Coordinator
Timestamp
Version
2.0.3
Exploitation: noneAutomatable: noTechnical Impact: partial

CVSS vector scores

4 official scores

We collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.

Score Version Severity Vector Exploit Impact Source
6.5 CVSS 2.0 Medium AV:N/AC:L/Au:S/C:P/I:P/A:P/E:POC/RL:ND/RC:UR 8 6.4 VulDB
6.3 CVSS 3.1 Medium CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:R 2.8 3.4 VulDB
6.3 CVSS 3.0 Medium CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:R 2.8 3.4 VulDB
5.3 CVSS 4.0 Medium CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P — — VulDB

Vulnerability scoring details

Base CVSS 4.0 score

5.3 Medium
CVSS 4.0 vector shape for CVE-2026-9484 Attack VectorAttack ComplexityAttack RequirementsPrivileges RequiredUser InteractionVS ConfidentialityVS IntegrityVS AvailabilitySS ConfidentialitySS IntegritySS Availability

Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P

Attack Vector
NetworkAdjacentLocalPhysical
Attack Complexity
LowHigh
Attack Requirements
NonePresent
Privileges Required
NoneLowHigh
User Interaction
NonePassiveActive
VS Confidentiality
HighLowNone
VS Integrity
HighLowNone
VS Availability
HighLowNone
SS Confidentiality
HighLowNone
SS Integrity
HighLowNone
SS Availability
HighLowNone

Vulnerability timeline

Timeline events are normalized from CVE metadata, CNA source timelines, ADP timelines, and KEV metadata when present.

  1. Source timeline VulDB

    Advisory disclosed

  2. Source timeline VulDB

    VulDB entry created

  3. CVE reserved CVE Program

    The CVE ID was reserved by the assigning CNA.

  4. Source timeline VulDB

    VulDB entry last update

  5. CVE published CVE Program

    The CVE record was published.

  6. CVE updated CVE Program

    The CVE record metadata indicates this as the latest update time.

ADP provider summaries

CISA-ADP CISA ADP Vulnrichment
other:ssvc

Source materials

Affected products

Products and packages named in the record

Vendor Product Version / package Status
SourceCodester Student Grades Management System 1.0 Listed
Weakness

CWE details

CWE-266CWE-285

CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.

CWE-266 · source CWE mapping

Incorrect Privilege Assignment

Incorrect Privilege Assignment represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.

Open CWE intelligence Same-CWE CVEs
CWE-285 · source CWE mapping

Improper Authorization

Improper Authorization represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.

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