CVE-2018-20859

Description

edx-platform before 2018-07-18 allows XSS via a response to a Chemical Equation advanced problem.

Category

6.1
CVSS
Severity: Medium
CVSS 3.1 •
CVSS 2.0 •
EPSS 0.30%
Third-Party Advisory github.com Third-Party Advisory githubusercontent.com
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
https://groups.google.com/forum/#%21topic/openedx-announce/wsm5mtUhhME
https://github.com/edx/edx-platform/commit/5b144559fbdba7ff673cc1c165aa2d343e07b6bd.patch third party advisory patch
https://patch-diff.githubusercontent.com/raw/edx/edx-platform/pull/18639.patch third party advisory patch

Frequently Asked Questions

What is the severity of CVE-2018-20859?
CVE-2018-20859 has been scored as a medium severity vulnerability.
How to fix CVE-2018-20859?
To fix CVE-2018-20859, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2018-20859 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2018-20859 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
This platform uses data from the NIST NVD, MITRE CVE, MITRE CWE, First.org and CISA KEV but is not endorsed or certified by these entities. CVE is a registred trademark of the MITRE Corporation and the authoritative source of CVE content is MITRE's CVE web site. CWE is a registred trademark of the MITRE Corporation and the authoritative source of CWE content is MITRE's CWE web site.
© 2025 Under My Watch. All Rights Reserved.