[HIGH] CVE-2026-13486 — CVSS 7.3 (June 28, 2026)

A HIGH-severity vulnerability identified as CVE-2026-13486 has been published on June 28, 2026 with a CVSS base score of 7.3. This security advisory provides a detailed breakdown of the vulnerability, its potential impact, weakness classification, and actionable steps to protect your systems.

Vulnerability Details

CVE ID: CVE-2026-13486
Severity: HIGH
CVSS Score: 7.3
Published: June 28, 2026
Weakness (CWE): CWE-74

Technical Description

A vulnerability was determined in SourceCodester Class and Exam Timetabling System 1.0/6.php. This impacts an unknown function of the file /preview6.php. Executing a manipulation of the argument course_year_section can lead to sql injection. The attack can be launched remotely. The exploit has been publicly disclosed and may be utilized.

Potential Impact

If exploited, this high-severity vulnerability could allow an attacker to cause significant damage to affected systems. Organizations running affected software should treat this as a priority remediation item.

Recommended Action

No official patch is available yet. Until one is released:

1. Monitor the official NVD page and vendor channels for patch announcements.
2. Restrict access to the affected system or service where possible.
3. Apply network-level mitigations such as firewall rules or WAF policies.
4. Enable logging and alerting for anomalous activity related to this vulnerability.
5. Review your incident response plan in case of active exploitation.

View full details on NVD →

References

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• Reference 5

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