CVE-2020-5298

Name: CVE-2020-5298
Creator: NVD / NIST
Published: 2020-06-03T22:15:11.847+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 4.8/10EPSS 0.91%

Last modified Jun 17, 2026

CVE-2020-5298 is a medium-severity vulnerability rated 4.8/10 on the CVSS scale. In OctoberCMS (october/october composer package) versions from 1.0.319 and before 1.0.466, a user with the ability to use the import functionality of the `ImportExportController` behavior can be socially engineered by an attacker to upload a maliciously crafted CSV file which could result in a reflected XSS attack on the user in question Issue has been patched in Build 466 (v1.0.466).. EPSS estimates a 0.91% chance of exploitation in the next 30 days.

Description

In OctoberCMS (october/october composer package) versions from 1.0.319 and before 1.0.466, a user with the ability to use the import functionality of the `ImportExportController` behavior can be socially engineered by an attacker to upload a maliciously crafted CSV file which could result in a reflected XSS attack on the user in question Issue has been patched in Build 466 (v1.0.466).

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

0.91%

55.4th 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/cd0b6a791f995d86071a024464c1702efc50f46cPatch, Third Party Advisory
https://github.com/octobercms/october/security/advisories/GHSA-gg6x-xx78-448cPatch, 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/cd0b6a791f995d86071a024464c1702efc50f46cPatch, Third Party Advisory
https://github.com/octobercms/october/security/advisories/GHSA-gg6x-xx78-448cPatch, Third Party Advisory

Timeline

Published: Jun 3, 2020
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2020-5298?

How severe is CVE-2020-5298?

CVE-2020-5298 has a CVSS score of 4.8/10 (MEDIUM severity). The EPSS model estimates a 0.91% probability of exploitation in the next 30 days.

How do I fix CVE-2020-5298?

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-2020-5298?

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

Scan your code now

Source: NVD / NIST