CVE-2020-11083

low-risk
Published 2020-07-14

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.

Do I need to act?

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0.92% chance of exploitation
EPSS score — low exploit probability
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Not on CISA KEV list
No confirmed active exploitation reported to CISA
?
Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
3
CVSS 3.5/10 Low
NETWORK / LOW complexity

Affected Products (1)

Affected Vendors

Octobercms

References (10)

Exploit http://packetstormsecurity.com/files/158730/October-CMS-Build-465-XSS-File-Read-...
Exploit http://seclists.org/fulldisclosure/2020/Aug/2
Patch https://github.com/octobercms/october/commit/9ecfb4867baae14a0d3f99f5b5c1e8a979a...
Patch https://github.com/octobercms/october/security/advisories/GHSA-w4pj-7p68-3vgv
Patch https://github.com/rainlab/blog-plugin/commit/6ae19a6e16ef3ba730692bc899851342c8...
Exploit http://packetstormsecurity.com/files/158730/October-CMS-Build-465-XSS-File-Read-...
Exploit http://seclists.org/fulldisclosure/2020/Aug/2
Patch https://github.com/octobercms/october/commit/9ecfb4867baae14a0d3f99f5b5c1e8a979a...
Patch https://github.com/octobercms/october/security/advisories/GHSA-w4pj-7p68-3vgv
Patch https://github.com/rainlab/blog-plugin/commit/6ae19a6e16ef3ba730692bc899851342c8...
24
/ 100
low-risk
Severity 16/34 · Moderate
Exploitability 3/34 · Minimal
Exposure 5/34 · Minimal