CVE-2020-11083

Name: CVE-2020-11083
Creator: NVD / NIST
Published: 2020-07-14T21:15:10.607+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 4.8/10EPSS 1.15%

Last modified Jun 17, 2026

CVE-2020-11083 is a medium-severity vulnerability rated 4.8/10 on the CVSS scale. In October from version 1.0.319 and before version 1.0.466, a user with access to a markdown FormWidget that stores data persistently could create a stored XSS attack against themselves and any other users with access to the generated HTML from the field. This has been fixed in 1.0.466. EPSS estimates a 1.15% chance of exploitation in the next 30 days.

Description

In October from version 1.0.319 and before version 1.0.466, a user with access to a markdown FormWidget that stores data persistently could create a stored XSS attack against themselves and any other users with access to the generated HTML from the field. This has been fixed in 1.0.466. For users of the RainLab.Blog plugin, this has also been fixed in 1.4.1.

Metrics

CVSS 3.1

4.8/10

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

EPSS Probability

1.15%

62.8th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Octobercms	October	>= 1.0.319, < 1.0.466

References

http://packetstormsecurity.com/files/158730/October-CMS-Build-465-XSS-File-Read-File-Deletion-CSV-Injection.htmlExploit, Third Party Advisory, VDB Entry
http://seclists.org/fulldisclosure/2020/Aug/2Exploit, Mailing List, Third Party Advisory
https://github.com/octobercms/october/commit/9ecfb4867baae14a0d3f99f5b5c1e8a979ae8746Patch, Third Party Advisory
https://github.com/octobercms/october/security/advisories/GHSA-w4pj-7p68-3vgvPatch, Third Party Advisory
https://github.com/rainlab/blog-plugin/commit/6ae19a6e16ef3ba730692bc899851342c858bb94Patch, Third Party Advisory
http://packetstormsecurity.com/files/158730/October-CMS-Build-465-XSS-File-Read-File-Deletion-CSV-Injection.htmlExploit, Third Party Advisory, VDB Entry
http://seclists.org/fulldisclosure/2020/Aug/2Exploit, Mailing List, Third Party Advisory
https://github.com/octobercms/october/commit/9ecfb4867baae14a0d3f99f5b5c1e8a979ae8746Patch, Third Party Advisory
https://github.com/octobercms/october/security/advisories/GHSA-w4pj-7p68-3vgvPatch, Third Party Advisory
https://github.com/rainlab/blog-plugin/commit/6ae19a6e16ef3ba730692bc899851342c858bb94Patch, Third Party Advisory

Timeline

Published: Jul 14, 2020
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2020-11083?

How severe is CVE-2020-11083?

CVE-2020-11083 has a CVSS score of 4.8/10 (MEDIUM severity). The EPSS model estimates a 1.15% probability of exploitation in the next 30 days.

How do I fix CVE-2020-11083?

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-2020-11083?

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

Scan your code now

Source: NVD / NIST