XSS in Octobercms October
CVE-2020-5298
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).
Published · last modified .
CVSS v3 metric
CVSS v3 base score 4.0 (Medium). Vector: CVSS:3.1/AV:N/AC:H/PR:H/UI:R/S:C/C:L/I:L/A:N.
EPSS exploit prediction
EPSS: 0.009 (58.4th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 58th percentile — 58.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.009 · newest: 0.009 · change: 0.000
Affected products
- Octobercms October — versions >= 1.0.319, < 1.0.466
Weakness classification (CWE)
References
- github.com/octobercms/october/security/advisories/GHSA-gg6x-xx78-448c (Patch, Third Party Advisory)
- github.com/octobercms/october/commit/cd0b6a791f995d86071a024464c1702efc50f46c (Patch, Third Party Advisory)
- packetstormsecurity.com/files/158730/October-CMS-Build-465-XSS-File-Read-File-D… (Exploit, VDB Entry, Third Party Advisory)
- seclists.org/fulldisclosure/2020/Aug/2 (mailing-list, Exploit, Mailing List, Third Party Advisory)
Frequently asked questions
- What is CVE-2020-5298?
- CVE-2020-5298 is a medium-severity vulnerability in Octobercms October, classified under Improper Neutralization of Alternate XSS Syntax. CVSS score: 4.0/10. Published 2020-06-03.
- How severe is CVE-2020-5298?
- Medium severity. CVSS v3 base score is 4.0 out of 10.