CVE-2018-20859

medium

Description

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

References

Advisories
More

https://patch-diff.githubusercontent.com/raw/edx/edx-platform/pull/18639.patch

https://github.com/edx/edx-platform/commit/5b144559fbdba7ff673cc1c165aa2d343e07b6bd.patch

https://groups.google.com/forum/#%21topic/openedx-announce/wsm5mtUhhME

Details

Source: Mitre, NVD

Published: 2019-07-30

Updated: 2026-06-17

Risk Information

CVSS v2

Base Score: 4.3

Vector: CVSS2#AV:N/AC:M/Au:N/C:N/I:P/A:N

Severity: Medium

CVSS v3

Base Score: 6.1

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

Severity: Medium

EPSS

EPSS: 0.00301