XSS in October Cms
CVE-2020-11083
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.
Vulnerability class: XSS (Cross-Site Scripting)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 3.5 (Low). Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:L/I:L/A:N.
EPSS exploit prediction
EPSS: 0.011 (65.5th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 66th percentile — 65.5% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.011 · newest: 0.011 · change: 0.000
Affected products
- October Cms — versions >= 1.0.319, < 1.0.466
- Octobercms October
Weakness classification (CWE)
References
- github.com/octobercms/october/security/advisories/GHSA-w4pj-7p68-3vgv (Patch, Third Party Advisory)
- github.com/octobercms/october/commit/9ecfb4867baae14a0d3f99f5b5c1e8a979ae8746 (Patch, Third Party Advisory)
- github.com/rainlab/blog-plugin/commit/6ae19a6e16ef3ba730692bc899851342c858bb94 (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-2020-11083?
- CVE-2020-11083 is a low-severity vulnerability in October Cms, classified under Cross-site Scripting. CVSS score: 3.5/10. Published 2020-07-14.
- How severe is CVE-2020-11083?
- Low severity. CVSS v3 base score is 3.5 out of 10.