SourceCodester Class and Exam Timetabling System CYS.php cross site scripting
Priority MEDIUM 56CWE-79Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- Low
- User interaction
- Passive
- Attack complexity
- Low
- Attack requirements
- None
- Impact type
- Cross-site scripting, Code execution
- Confidentiality · integrity · availability
- None · Low · None
- Fix status
- No fix listed
Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-79 and CWE-94.
Summary
A vulnerability was determined in SourceCodester Class and Exam Timetabling System 1.0. Affected by this vulnerability is an unknown functionality of the file /CYS.php. This manipulation of the argument course causes cross site scripting. The attack is possible to be carried out remotely. The exploit has been publicly disclosed and may be utilized.
Why it matters now
Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.00348 28th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by the CNA
Fix No fix listed No fixed version in the sources yet
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- Poc
- Automatable
- No
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| SourceCodester | Class and Exam Timetabling System | 1.0 | — | No fix listed | CNA |
- Class and Exam Timetabling System VendorSourceCodester Affected 1.0 Fixed in — No fix listed CNA
CPE names CNA · 1
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:sourcecodester:class_and_exam_timetabling_system:*:*:*:*:*:*:*:* | — | — | SourceCodester |
- cpe:2.3:a:sourcecodester:class_and_exam_timetabling_system:*:*:*:*:*:*:*:* Versions — — ·SourceCodester
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2026-16202
- 2026-10-03 Alias added: GHSA-grp8-2555-3cmp
References
More SourceCodester vulnerabilities
- TI-2024-03188 SourceCodester Online Courseware deactivateteach.php sql injection CVSS 3.1CRITICAL 9.8
- TI-2024-03160 SourceCodester Computer Laboratory Management System config.php redirect CVSS 3.1CRITICAL 9.8
- TI-2024-03131 SourceCodester Airline Ticket Reservation System activate_jet_details_form_handler.php sql injection CVSS 3.1CRITICAL 9.8
- TI-2024-01794 SourceCodester Web-Based Student Clearance System login.php sql injection CVSS 3.1CRITICAL 9.8
- TI-2023-05341 SourceCodester Simple Real Estate Portal System view_estate.php sql injection CVSS 3.1CRITICAL 9.8
- TI-2023-04857 SourceCodester Engineers Online Portal remove_inbox_message.php sql injection CVSS 3.1CRITICAL 9.8
Sources
- CVE-2026-16202 · CVE Program
- CVE-2026-16202 · NVD
- FIRST EPSS
- GHSA-grp8-2555-3cmp · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences