CVE-2020-29257

Name: CVE-2020-29257
Creator: NVD / NIST
Published: 2020-12-09T23:15:12.34+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 6.1/10EPSS 0.69%

Last modified Jun 17, 2026

CVE-2020-29257 is a medium-severity vulnerability rated 6.1/10 on the CVSS scale. Cross-site scripting (XSS) vulnerability in Online Examination System 1.0 via the q parameter to feedback.php.. EPSS estimates a 0.69% chance of exploitation in the next 30 days.

Description

Cross-site scripting (XSS) vulnerability in Online Examination System 1.0 via the q parameter to feedback.php.

Metrics

CVSS 3.1

6.1/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

EPSS Probability

0.69%

48.1th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-79

Affected Software

Vendor	Product	Versions
Online Examination System Project	Online Examination System	1.0

References

https://asfiyashaikh20.medium.com/exploit-for-cve-2020-29257-reflected-cross-site-scripting-xss-vulnerability-4a7bf9ae7d80Exploit, Third Party Advisory
https://asfiyashaikh20.medium.com/exploit-for-cve-2020-29257-reflected-cross-site-scripting-xss-vulnerability-4a7bf9ae7d80Exploit, Third Party Advisory

Timeline

Published: Dec 9, 2020
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2020-29257?

Cross-site scripting (XSS) vulnerability in Online Examination System 1.0 via the q parameter to feedback.php.

How severe is CVE-2020-29257?

CVE-2020-29257 has a CVSS score of 6.1/10 (MEDIUM severity). The EPSS model estimates a 0.69% probability of exploitation in the next 30 days.

How do I fix CVE-2020-29257?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2020-29257?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST