Sitecore CMS and Experience Platform (XP) Deserialization Vulnerability

When

2025-03-26 00:00 UTC · day precision

Where

Global (internet)

Category

cyber_exploit

Sitecore CMS and Experience Platform (XP) contain a deserialization vulnerability in the Sitecore.Security.AntiCSRF module that allows an unauthenticated attacker to execute arbitrary code by sending a serialized .NET object in the HTTP POST parameter __CSRFTOKEN.

Sources

• CISA ↗ · first seen 2025-03-26 00:00 UTC

Defaxon links out to the original reporting and never republishes article text.

Correlated events

Computed by the Defaxon correlation engine — linked by shared actors, co-location, and temporal proximity. Scored hypotheses, never causal claims.

No correlated events found in the current window. As more events arrive, connections form automatically.

← Back to the live map