CVE-2021-3311
moderate-risk
Published 2021-02-05
An issue was discovered in October through build 471. It reactivates an old session ID (which had been invalid after a logout) once a new login occurs. NOTE: this violates the intended Auth/Manager.php authentication behavior but, admittedly, is only relevant if an old session ID is known to an attacker.
Do I need to act?
~
1.5% chance of exploitation in next 30 days
EPSS score — moderate exploit probability
-
Not on CISA KEV list
No confirmed active exploitation reported to CISA
?
Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
9
CVSS 9.8/10
Critical
NETWORK
/ LOW complexity
Affected Products (1)
Affected Vendors
References (6)
Vendor Advisory
https://octobercms.com/forum/chan/announcements
Vendor Advisory
https://octobercms.com/forum/chan/announcements
41
/ 100
moderate-risk
Severity
32/34 · Critical
Exploitability
4/34 · Minimal
Exposure
5/34 · Minimal