What is CVE-2015-6253?

CVE-2015-6253 is a medium-severity vulnerability in Edx Edx-Platform, classified under Cross-site Scripting. CVSS score: 5.4/10. Published 2019-07-29.

How severe is CVE-2015-6253?

Medium severity. CVSS v3 base score is 5.4 out of 10.

XSS in Edx Edx-Platform

CVE-2015-6253

edx-platform before 2015-08-17 allows XSS in the Studio listing of courses.

Vulnerability class: XSS (Cross-Site Scripting)

Published 2019-07-29 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 5.4 (Medium). Vector: CVSS:3.0/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N.

EPSS exploit prediction

EPSS: 0.005 (42.5th percentile), scored 2026-09-29.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 43rd percentile — 42.5% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.005 · newest: 0.005 · change: 0.000

Affected products

Edx Edx-Platform

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

References

open.edx.org/CVE-2015-6253 (Broken Link)
open.edx.org/announcements/cve-2015-6253/ (Patch, Third Party Advisory)

Frequently asked questions

What is CVE-2015-6253?: CVE-2015-6253 is a medium-severity vulnerability in Edx Edx-Platform, classified under Cross-site Scripting. CVSS score: 5.4/10. Published 2019-07-29.
How severe is CVE-2015-6253?: Medium severity. CVSS v3 base score is 5.4 out of 10.