CVE-2020-28707 — MEDIUM (6.1)

Q: How severe is CVE-2020-28707?

CVE-2020-28707 has been rated MEDIUM with a CVSS base score of 6.1/10. Review the CVSS metrics above for detailed severity breakdown.

Q: Is there a patch for CVE-2020-28707?

Check the references section above for vendor advisories and patch information. Affected products include: Stockdio Stockdio Historical Chart.

Vulnerability Description

The Stockdio Historical Chart plugin before 2.8.1 for WordPress is affected by Cross Site Scripting (XSS) via stockdio_chart_historical-wp.js in wp-content/plugins/stockdio-historical-chart/assets/ because the origin of a postMessage() event is not validated. The stockdio_eventer function listens for any postMessage event. After a message event is sent to the application, this function sets the "e" variable as the event and checks that the types of the data and data.method are not undefined (empty) before proceeding to eval the data.method received from the postMessage. However, on a different website. JavaScript code can call window.open for the vulnerable WordPress instance and do a postMessage(msg,'*') for that object.

CVSS Score

6.1

MEDIUM

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

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

REQUIRED

Scope

CHANGED

Confidentiality

LOW

Integrity

LOW

Availability

NONE

Affected Products

Vendor	Product	Versions
Stockdio	Stockdio Historical Chart	< 2.8.1

Related Weaknesses (CWE)

CWE-79

References

http://stockdio.comVendor Advisory
https://jondow.eu/cve-2020-28707-xss-in-stockdio-historical-chart-plugin-for-worExploitThird Party Advisory
https://wordpress.org/plugins/stockdio-historical-chart/#developersRelease NotesThird Party Advisory
http://stockdio.comVendor Advisory
https://jondow.eu/cve-2020-28707-xss-in-stockdio-historical-chart-plugin-for-worExploitThird Party Advisory
https://wordpress.org/plugins/stockdio-historical-chart/#developersRelease NotesThird Party Advisory

FAQ

What is CVE-2020-28707?

CVE-2020-28707 is a vulnerability with a CVSS score of 6.1 (MEDIUM). The Stockdio Historical Chart plugin before 2.8.1 for WordPress is affected by Cross Site Scripting (XSS) via stockdio_chart_historical-wp.js in wp-content/plugins/stockdio-historical-chart/assets/ be...

How severe is CVE-2020-28707?

CVE-2020-28707 has been rated MEDIUM with a CVSS base score of 6.1/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2020-28707?

Check the references section above for vendor advisories and patch information. Affected products include: Stockdio Stockdio Historical Chart.