CVE-2021-28834
high-risk
Published 2021-03-19
Kramdown before 2.3.1 does not restrict Rouge formatters to the Rouge::Formatters namespace, and thus arbitrary classes can be instantiated.
Do I need to act?
~
2.6% chance of exploitation in next 30 days
EPSS score — moderate exploit probability
-
Not on CISA KEV list
No confirmed active exploitation reported to CISA
+
Fix available
Upgrade to: 0b0a9e072f9a76e59fe2bbafdf343118fb27c3fa, 179329b5c3c118924fb242dc449d06b4ed6ccb66
9
CVSS 9.8/10
Critical
NETWORK
/ LOW complexity
Affected Products (5)
Affected Vendors
References (14)
Third Party Advisory
https://www.debian.org/security/2021/dsa-4890
Third Party Advisory
https://www.debian.org/security/2021/dsa-4890
50
/ 100
high-risk
Severity
32/34 · Critical
Exploitability
6/34 · Minimal
Exposure
12/34 · Low