TYPO3 HTML Sanitizer allows Cross-site Scripting
- When
- Where
- Global (internet)
- Category
- cyber_advisory · composer
Namespace attributes are not encoded correctly during HTML serialization. This allows bypassing the cross-site scripting prevention mechanism of `typo3/html-sanitizer` before version 2.3.2. Credits to Doyensec in collaboration with Claude and Anthropic Research for reporting this vulnerability.
Involved actors & entities
People, organizations and places machine-extracted from the source reporting — they power search and the correlation graph. Extracted automatically, so they can include noise, especially on events still marked unverified.
Sources
- GitHub Advisory Database ↗ · first seen 2026-06-12 20:07 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.