XSS in Code-Projects Online Exam Mastering System
CVE-2025-28121
code-projects Online Exam Mastering System 1.0 is vulnerable to Cross Site Scripting (XSS) in feedback.php via the "q" parameter allowing remote attackers to execute arbitrary code.
Vulnerability class: XSS (Cross-Site Scripting)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 6.1 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N.
EPSS exploit prediction
EPSS: 0.009 (58.0th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 58th percentile — 58.0% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.008 · newest: 0.009 · change: +0.001
Affected products
- Code-Projects Online Exam Mastering System — versions 1.0
Weakness classification (CWE)
Public proof-of-concept exploits
References
- code-projects.org/online-exam-mastering-system-php/ (Product)
- github.com/pruthuraut/CVE-2025-28121 (Exploit, Third Party Advisory)
Frequently asked questions
- What is CVE-2025-28121?
- CVE-2025-28121 is a medium-severity vulnerability in Code-Projects Online Exam Mastering System, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2025-04-21.
- How severe is CVE-2025-28121?
- Medium severity. CVSS v3 base score is 6.1 out of 10.
- Is CVE-2025-28121 known to be exploited?
- 4 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.