Question 1

What is the EOL Risk Score for Backdrop CMS 1.28?

Accepted Answer

Backdrop CMS 1.28 has an EOL Risk Score™ of 45 out of 100, placing it in the Medium risk band. The score is calculated from four factors: EOL Recency (35/40), Attack Surface (10/30), CISA KEV Exposure (0/20), and Extended Support Availability (0/10).

Question 2

Is Backdrop CMS 1.28 still supported?

Accepted Answer

Backdrop CMS 1.28 is no longer supported — it has passed its end of life date (January 15, 2025). No further security patches will be issued. Upgrade to a supported version or obtain extended lifecycle support.

Question 3

When does Backdrop CMS 1.28 reach end of life?

Accepted Answer

Backdrop CMS 1.28 reached (or will reach) end of life on January 15, 2025. After this date, no security patches or bug fixes are issued by the vendor.

Question 4

What are the security risks of running Backdrop CMS 1.28 after end of life?

Accepted Answer

After end of life, Backdrop CMS 1.28 no longer receives security patches. Any newly discovered CVEs remain unpatched indefinitely. Organizations running EOL software also face compliance violations under SOC 2, PCI DSS, HIPAA, and ISO 27001, which require use of supported software versions.