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Sitecore exploited vulnerabilities: 4 in CISA KEV, 0 in the last 12 months

Gociux · updated with each KEV addition · latest 4 Sep 2025

CISA lists 4 Sitecore vulnerabilities as exploited in the wild, 0 of them added in the last 12 months (down from 3 in the 12 months before). 1 (25%) are known to be used in ransomware campaigns. For entries added in the last two years, the median time from CVE publication to the KEV listing was 2126 days. Most affected: CMS and Experience Platform (XP) (2), Multiple Products (1), XP (1).

4in CISA KEV
0last 12 months
25%ransomware-linked
2126dpublication → KEV (median)

Exploited CVEs added per year

010030
202120222023202420252026

Most affected products

ProductKEV entries
CMS and Experience Platform (XP)2
Multiple Products1
XP1

Every exploited Sitecore CVE

CVEVulnerabilityAdded
CVE-2025-53690Sitecore Multiple Products Deserialization of Untrusted Data VulnerabilityMultiple Products4 Sep 2025
CVE-2019-9875Sitecore CMS and Experience Platform (XP) Deserialization VulnerabilityCMS and Experience Platform (XP)26 Mar 2025
CVE-2019-9874Sitecore CMS and Experience Platform (XP) Deserialization VulnerabilityCMS and Experience Platform (XP)26 Mar 2025
CVE-2021-42237Sitecore XP Remote Command Execution VulnerabilityRANSOMWAREXP25 Mar 2022

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How to read this: CISA KEV lists vulnerabilities with reliable evidence of exploitation; a vendor with many entries is often one with a large, internet-facing install base, not necessarily worse engineering. "Publication → KEV" is the median number of days between the CVE's publication and its addition to KEV, for entries added in the last 24 months (3 entries); it is an upper bound on how long defenders had, since exploitation usually starts before the listing. Under NIS2 article 21(2)(d), supplier security is part of your risk management; this page is a starting point for that review. Compare vendors on the scorecard index.

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