Vulnerability · Published Jul 19, 2026 · Assigned by VulDB

CVE-2026-16202SourceCodester Class and Exam Timetabling System CYS.php cross site scripting

Low 3.5

In plain English

A low-severity cross-site scripting in Class and Exam Timetabling System from SourceCodester. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 29% of all known vulnerabilities).

Severity (CVSS 3.1)3.5Low

Exploit odds (30 days)0.3%top 71.4% of all CVEs

Exploited in the wildNo reportsCISA SSVC: poc

Attack toolingNoneno public tooling known

Official description

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.

Affected products (as reported)

Vendor	Product	Versions
SourceCodester	Class and Exam Timetabling System	1.0

Weakness: CWE-79, CWE-94 · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:L/A:N/E:P/RL:X/RC:R

References

VDB-380018 | SourceCodester Class and Exam Timetabling System CYS.php cross site scripting vdb-entry, technical-description
VDB-380018 | CTI Indicators (IOB, IOC, TTP, IOA) signature, permissions-required
CVE-2026-16202 | CVE Analysis and Report third-party-advisory
Submit #857765 | sourcecodester Class and Exam Timetabling System V1.0 cross site scripting third-party-advisory
https://github.com/AlbaDove/cve/issues/9 exploit, issue-tracking
https://www.sourcecodester.com/ product