What is CVE-2018-1000813?

CVE-2018-1000813 is a medium-severity vulnerability in Backdropcms Backdrop Cms, classified under Cross-site Scripting. CVSS score: 4.8/10. Published 2018-12-20.

How severe is CVE-2018-1000813?

Medium severity. CVSS v3 base score is 4.8 out of 10.

XSS in Backdropcms Backdrop Cms

CVE-2018-1000813

Backdrop CMS version 1.11.0 and earlier contains a Cross Site Scripting (XSS) vulnerability in Sanitization of custom class names used on blocks and layouts. that can result in Execution of JavaScript from an unexpected source.. This attack appear to be exploitable via A user must be directed to an affected page while logged in.. This vulnerability appears to have been fixed in 1.11.1 and later.

Vulnerability class: XSS (Cross-Site Scripting)

EPSS: 0.007 (52.6th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 4.8 (Medium). Vector: CVSS:3.0/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N.

Affected products

Backdropcms Backdrop_cms
N/a — versions n/a

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

References

cve@mitre.org (x_refsource_MISC, Vendor Advisory)

Frequently asked questions

What is CVE-2018-1000813?: CVE-2018-1000813 is a medium-severity vulnerability in Backdropcms Backdrop Cms, classified under Cross-site Scripting. CVSS score: 4.8/10. Published 2018-12-20.
How severe is CVE-2018-1000813?: Medium severity. CVSS v3 base score is 4.8 out of 10.