Quick answers
- Is CVE-2026-75077 exploited in the wild?
- No. Junglewise Threat Intelligence has no report of CVE-2026-75077 being exploited in the wild.
- How severe is CVE-2026-75077?
- Medium severity, with a CVSS score of 4.3, published 17 August 2026.
- Which products and versions are affected?
- SourceCodester Class and Exam Timetabling System 1.0.
- Is there a fix for CVE-2026-75077?
- No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.
- How is CVE-2026-75077 attacked?
- It is attacked over the network, in a web application.
- Am I affected by CVE-2026-75077?
- Check whether you run SourceCodester Class and Exam Timetabling System at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.
Technical details
This is a reflected/stored cross-site scripting (XSS) vulnerability in the /BSCE2.php file of Class and Exam Timetabling System version 1.0. The vulnerable component fails to properly encode or filter the 'course' parameter before outputting it to the web page, allowing attackers to inject arbitrary JavaScript code. The attack is network-accessible and requires no authentication; an attacker can craft a malicious URL or inject the payload through a form parameter and any user accessing the page would execute the injected script in their browser. The impact includes session hijacking, credential theft, unauthorized actions, and malware distribution. No patch information is currently available from the vendor.
Affected products
- SourceCodester Class and Exam Timetabling System 1.0
Timeline
- 2026-07-01: disclosed: Vulnerability reported on GitHub
- 2026-08-17: advisory: CVE-2026-75077 published