CVE-2026-47348: TYPO3 CMS XSS in Indexed Search component

CVE-2026-47348 · Severity: medium · CVSS 4 · Published 2026-06-09

TYPO3 CMS is a popular open-source content management system used for building and managing websites. A security flaw in its search functionality allows authorized editors to inject malicious scripts into page titles. If a visitor views these titles in search results, the script could execute in their browser, potentially leading to unauthorized actions or the theft of sensitive session information.

Technologies: typo3/cms-core (Packagist). Vendors: Packagist, Typo3.

Quick answers

Is CVE-2026-47348 exploited in the wild?
No. Junglewise Threat Intelligence has no report of CVE-2026-47348 being exploited in the wild.
How severe is CVE-2026-47348?
Medium severity, with a CVSS score of 4, published 9 June 2026.
Which products and versions are affected?
typo3/cms-core (Packagist) ECOSYSTEM:introduced=13.0.0,fixed=13.4.31; typo3/cms-indexed-search (Packagist) ECOSYSTEM:introduced=13.0.0,fixed=13.4.31; Typo3 Indexed Search 13.0.0 to 13.4.30, 14.0.0 to 14.3.2.
Is there a fix for CVE-2026-47348?
Yes. typo3/cms-core (Packagist): upgrade to 13.4.31 or later; typo3/cms-indexed-search (Packagist): upgrade to 13.4.31 or later. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
How is CVE-2026-47348 attacked?
It is attacked over the network, in a network appliance.
Am I affected by CVE-2026-47348?
Check whether you run typo3/cms-core (Packagist), typo3/cms-indexed-search (Packagist) or Typo3 Indexed Search at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

How to fix

  • typo3/cms-core (Packagist): upgrade to 13.4.31 or later
    composer require typo3/cms-core:^13.4.31
  • typo3/cms-indexed-search (Packagist): upgrade to 13.4.31 or later
    composer require typo3/cms-indexed-search:^13.4.31

Technical details

A stored Cross-Site Scripting (XSS) vulnerability exists in the TYPO3 Indexed Search (indexed_search) extension. The root cause is a failure to sanitize page titles before they are stored in the search index and a subsequent failure to apply proper output encoding when these titles are rendered in frontend search results. An attacker with 'editor' privileges (Privileges Required: Low) can include HTML markup in page titles. When a victim performs a search that returns the malicious page title, the payload executes in the victim's browser context. This issue is fixed in TYPO3 versions 13.4.31 and 14.3.3.

Affected products

  • TYPO3 TYPO3 CMS 13.0.0 to 13.4.30, 14.0.0 to 14.3.2
  • TYPO3 Indexed Search (indexed_search) 13.0.0 to 13.4.30, 14.0.0 to 14.3.2

Identifiers

  • CVE-2026-47348
  • GHSA-cg75-qfg2-w9hj

Timeline

  • 2026-06-09: disclosed
  • 2026-06-09: patched
  • 2026-06-12: advisory

References

This page as Markdown. Free to reuse under CC BY 4.0 with a link back.