November 13, 2026

CVE Watchtower

CVE-2026-125076SourceCodester Smart Attendance System with QR Code Scanner Missing Authentication for Critical Function

NVD

Vulnerability Summary

A vulnerability was found in SourceCodester Smart Attendance System with QR Code Scanner 1.0. Affected is an unknown function of the file api/attendance_handler.php of the component JSON Endpoint. Performing a manipulation of the argument student_code results in missing authentication. It is possible to initiate the attack remotely. The exploit has been made public and could be used.
Severity Level
MEDIUM(6.9)
Published Date
Nov 9, 2026
Last Modified
Nov 9, 2026
Exploitation Status
Public exploit available
EPSS Score (30-Day)
0.40%Probability
Root Weakness (CWE)
CWE-306: Missing Authentication for Critical Function β†—
The product does not perform any authentication for functionality that requires a provable user identity or consumes a significant amount of resources.
CWE-287: Improper Authentication β†—
When an actor claims to have a given identity, the software does not prove or insufficiently proves that the claim is correct.
CVSS v4.0 Base Metrics — Score 6.9 (MEDIUM)
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P
Attack VectorNetwork
Attack ComplexityLow
Attack RequirementsNone
Privileges RequiredNone
User InteractionNone
Confidentiality (Vulnerable System)Low
Integrity (Vulnerable System)Low
Availability (Vulnerable System)Low
Confidentiality (Subsequent System)None
Integrity (Subsequent System)None
Availability (Subsequent System)None
Show CVSS v3.x metrics (score 7.3)
CVSS v3.1 Base Metrics — Score 7.3 (HIGH)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:C
Attack VectorNetwork
Attack ComplexityLow
Privileges RequiredNone
User InteractionNone
ScopeUnchanged
ConfidentialityLow
IntegrityLow
AvailabilityLow

Affected & Patched Versions

Affected Versions
  • SourceCodester Smart Attendance System with QR Code Scanner 1.0
Patched Versions
No patched version published yet
Until a fix ships, reduce exposure:
  • Restrict access to the affected service or interface to trusted networks.
  • Disable the affected feature if you do not need it.
  • Watch the vendor advisory for a firmware or software update.

What to do

Prioritize this fix. Exploit code is public, so attacks can follow quickly.

  1. Check whether you run SourceCodester Smart Attendance System with QR Code Scanner and which version.
  2. No patched version is listed yet. Limit access to the affected service to trusted networks, and disable the feature if you can.
  3. Subscribe to the vendor advisory so you learn when a fix ships.
  4. Review logs and exposed services for signs of earlier compromise.

Timeline

  • Nov 9, 2026Published
  • Nov 9, 2026Record last modified

Score, severity and exploitation changes are tracked from the day Watchtower started logging them.

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External References

Data last checked: Nov 13, 2026 19:14 UTC