{"id":"CVE-2025-53690","aliases":["EUVD-2025-26629","GHSA-g5r9-cgwv-wmpc"],"status":"published","title":"Sitecore Products ViewState Deserialization Vulnerability","description":"Deserialization of Untrusted Data vulnerability in Sitecore Experience Manager (XM), Sitecore Experience Platform (XP) allows Code Injection.This issue affects Experience Manager (XM): through 9.0; Experience Platform (XP): through 9.0.","severity":{"version":"3.1","score":9,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H","level":"critical","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-11","score":0.6071,"percentile":0.9916,"model":"v2026.06.15"},"facts":{"in_kev":true,"known_exploited":true,"public_exploit":true,"fix_available":false},"cwes":["CWE-502"],"published":"2025-09-03T20:04:48Z","modified":"2026-10-18T21:10:00Z","kev":{"date_added":"2025-09-04","due_date":"2025-09-25","required_action":"Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.","known_ransomware_use":"Unknown"},"exploitation":[{"source":"euvd","since":"2025-09-04"},{"source":"kev","since":"2025-09-04"}],"exploits":[{"source":"pocgithub","id":"rxerium/CVE-2025-53690","title":"rxerium/CVE-2025-53690","date":"2025-09-04","url":"https://github.com/rxerium/CVE-2025-53690"},{"source":"pocgithub","id":"m0d0ri205/CVE-2025-53690-Analysis","title":"m0d0ri205/CVE-2025-53690-Analysis","date":"2025-09-07","url":"https://github.com/m0d0ri205/CVE-2025-53690-Analysis"},{"source":"pocgithub","id":"ErikLearningSec/CVE-2025-53690-POC","title":"ErikLearningSec/CVE-2025-53690-POC","date":"2025-11-05","url":"https://github.com/ErikLearningSec/CVE-2025-53690-POC"}],"products":[{"vendor":"sitecore","product":"experience manager (xm)"},{"vendor":"sitecore","product":"experience platform (xp)"},{"vendor":"sitecore","product":"experience_commerce"},{"vendor":"sitecore","product":"experience_manager"},{"vendor":"sitecore","product":"experience_platform"},{"vendor":"sitecore","product":"managed_cloud"},{"vendor":"sitecore","product":"multiple products"}],"references":[{"url":"https://cloud.google.com/blog/topics/threat-intelligence/viewstate-deserialization-zero-day-vulnerability","tags":["Exploit","Third Party Advisory"]},{"url":"https://support.sitecore.com/kb?id=kb_article_view\u0026sysparm_article=KB1003865","tags":["Vendor Advisory"]},{"url":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2025-53690","tags":["government-resource","US Government Resource"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2025-53690"},{"url":"https://github.com/advisories/GHSA-g5r9-cgwv-wmpc"}],"sources":{"cve":[{"id":"CVE-2025-53690","title":"Sitecore Products ViewState Deserialization Vulnerability","description":"Deserialization of Untrusted Data vulnerability in Sitecore Experience Manager (XM), Sitecore Experience Platform (XP) allows Code Injection.This issue affects Experience Manager (XM): through 9.0; Experience Platform (XP): through 9.0.","status":"published","published":"2025-09-03T20:04:48.223Z","modified":"2026-02-26T17:49:44.363Z","cvss":[{"version":"3.1","score":9,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H","level":"critical","assessor":"cna"}],"cwes":["CWE-502"],"updated_at":"2026-11-02T14:32:49.180768Z"}],"euvd":[{"id":"EUVD-2025-26629","description":"Deserialization of Untrusted Data vulnerability in Sitecore Experience Manager (XM), Sitecore Experience Platform (XP) allows Code Injection.This issue affects Experience Manager (XM): through 9.0; Experience Platform (XP): through 9.0.","status":"published","published":"2025-09-03T20:04:48Z","modified":"2026-02-26T17:49:44Z","cvss":[{"version":"3.1","score":9,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H","level":"critical"}],"exploited_since":"2025-09-04","updated_at":"2026-11-02T19:48:20.263706Z"}],"ghsa":[{"id":"GHSA-g5r9-cgwv-wmpc","title":"Deserialization of Untrusted Data vulnerability in Sitecore Experience Manager (XM), Sitecore...","description":"Deserialization of Untrusted Data vulnerability in Sitecore Experience Manager (XM), Sitecore Experience Platform (XP) allows Code Injection.This issue affects Experience Manager (XM): through 9.0; Experience Platform (XP): through 9.0.","status":"published","published":"2025-09-05T03:30:20Z","modified":"2025-10-22T00:33:20Z","cvss":[{"version":"3.1","score":9,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H","level":"critical"}],"cwes":["CWE-502"],"updated_at":"2026-11-02T15:04:08.198655Z"}],"kev":[{"id":"CVE-2025-53690","title":"Sitecore Multiple Products Deserialization of Untrusted Data Vulnerability","description":"Sitecore Experience Manager (XM), Experience Platform (XP), Experience Commerce (XC), and Managed Cloud contain a deserialization of untrusted data vulnerability involving the use of default machine keys. This flaw allows attackers to exploit exposed ASP.NET machine keys to achieve remote code execution. ","cwes":["CWE-502"],"kev":{"date_added":"2025-09-04","due_date":"2025-09-25","required_action":"Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.","known_ransomware_use":"Unknown"},"updated_at":"2026-11-02T17:00:15.999436Z"}],"nvd":[{"id":"CVE-2025-53690","description":"Deserialization of Untrusted Data vulnerability in Sitecore Experience Manager (XM), Sitecore Experience Platform (XP) allows Code Injection.This issue affects Experience Manager (XM): through 9.0; Experience Platform (XP): through 9.0.","status":"published","published":"2025-09-03T20:15:33.473Z","modified":"2026-10-18T21:10:00.12Z","cvss":[{"version":"3.1","score":9,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H","level":"critical","assessor":"secondary"}],"cwes":["CWE-502"],"updated_at":"2026-11-02T14:11:27.145738Z"}]}}