Description
The extension's indexer passed every field value returned by content object rendering through PHP's unserialize() function when transferring multi-value data for the SOLR_CLASSIFICATION, SOLR_MULTIVALUE and SOLR_RELATION content object types, rather than a safe format. If user-generated content saved in the TYPO3 database can reach an indexed field, this exposes a PHP Object Injection surface.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| TYPO3 | Extension "Apache Solr for TYPO3 - Enterprise Search" | 13.0.0 – < 13.1.4, 12.0.0 – < 12.1.4, 11.5.0 – < 11.6.6 | 13.1.4 |
Advisories 1
- WID-SEC-2026-3003 TYPO3 Extensions: Mehrere Schwachstellen BSI CERT-Bund (WID) · Aug 25, 2026
References
- https://typo3.org/security/advisory/typo3-ext-sa-2026-025 vendor-advisory