https://patchfirst.co/vendor/sitecore/New and newly exploited Sitecore CVEs, with CISA KEV, EPSS and ATT&CK context. Newest 50 by publication or KEV listing.en-gb360Sat, 31 Oct 2026 13:00:36 GMThttps://patchfirst.co/cve/CVE-2025-53690/CVE-2025-53690#kevThu, 04 Sep 2025 00:00:00 GMTSitecore · Multiple Products. In CISA KEV since 2025-09-04. ENISA EUVD lists it as exploited. EPSS 60.6% (higher than 99.14% of CVEs). CVSS 9.0 CRITICAL. Public exploit code exists. ATT&CK: T1190 Exploit Public-Facing Application; T1059 Command and Scripting Interpreter. Priority 69.1 of 100.kevpublic-exploitT1190T1059https://patchfirst.co/cve/CVE-2025-34511/CVE-2025-34511Tue, 17 Jun 2025 00:00:00 GMTSitecore · Powershell Extension. Not in CISA KEV. EPSS 30.4% (higher than 98.2% of CVEs). CVSS 8.8 HIGH. Public exploit code exists. Priority 66.9 of 100.public-exploithttps://patchfirst.co/cve/CVE-2025-34510/CVE-2025-34510Tue, 17 Jun 2025 00:00:00 GMTSitecore · Experience Manager. Not in CISA KEV. EPSS 24.8% (higher than 97.9% of CVEs). CVSS 8.8 HIGH. Public exploit code exists. Priority 66.8 of 100.public-exploithttps://patchfirst.co/cve/CVE-2025-34509/CVE-2025-34509Tue, 17 Jun 2025 00:00:00 GMTSitecore · Experience Manager. Not in CISA KEV. EPSS 55.9% (higher than 99.04% of CVEs). CVSS 7.5 HIGH. Public exploit code exists. Priority 66.1 of 100.public-exploithttps://patchfirst.co/cve/CVE-2019-9874/CVE-2019-9874#kevWed, 26 Mar 2025 00:00:00 GMTSitecore · CMS and Experience Platform (XP). In CISA KEV since 2025-03-26. ENISA EUVD lists it as exploited. EPSS 83.7% (higher than 99.69% of CVEs). CVSS 9.8 CRITICAL. Public exploit code exists. ATT&CK: T1190 Exploit Public-Facing Application; T1059 Command and Scripting Interpreter. Priority 69.8 of 100.kevpublic-exploitT1190T1059https://patchfirst.co/cve/CVE-2019-9875/CVE-2019-9875#kevWed, 26 Mar 2025 00:00:00 GMTSitecore · CMS and Experience Platform (XP). In CISA KEV since 2025-03-26. ENISA EUVD lists it as exploited. EPSS 25.4% (higher than 97.9% of CVEs). CVSS 8.8 HIGH. Public exploit code exists. ATT&CK: T1190 Exploit Public-Facing Application; T1059 Command and Scripting Interpreter. Priority 68.7 of 100.kevpublic-exploitT1190T1059https://patchfirst.co/cve/CVE-2021-42237/CVE-2021-42237#kevFri, 25 Mar 2022 00:00:00 GMTSitecore · XP. In CISA KEV since 2022-03-25, known ransomware use. ENISA EUVD lists it as exploited. EPSS 97.6% (higher than 99.9% of CVEs). CVSS 9.8 CRITICAL. Public exploit code exists. ATT&CK: T1059 Command and Scripting Interpreter. Priority 79.8 of 100.kevransomwarepublic-exploitT1059