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Vulnerabilities

Vulnerability · CVE-2026-107842

Contao: Protected page content is disclosed to anonymous visitors after contao.search.index_protected is disabled

Published Oct 9, 2026 · catalog updated Oct 9, 2026 · Contao: Protected page content

Check if you run it

No confirmed exploitation is on record for CVE-2026-107842. EPSS is 0.26%. Act only if a listed version of Contao: Protected page content is installed.

Gaps on this record

  • The stored product name is a package slug. The name on this page is taken from the title (Contao: Protected page content).
  • No vendor fix or required action is stored. Compare the linked advisory before you change production.
Severity
Medium5.3
Known exploitation
Not in CISA/VulnCheck KEV
EPSS
0.26%
Remediation
Advisory link
Affected products
Packagist contao/core-bundle

decides whether to filter protected pages out of search results based on the current value of , but the authorisation data lives per row in . Turning the setting off removes the filter without removing the rows, so protected pages that were indexed while it was on are returned to unauthenticated visitors such as title, URL and context snippet, even though the pages themselves still answer 401. ## Impact Disclosure of member-only page titles, URLs and indexed text to unauthenticated visitors through the site search. The pages themselves remain access-controlled, so this is not a page-access bypass. ## Credits This security vulnerability was found by @iRevivalx .

Are you affected?

Enter the version you run. The result uses only the ranges stored on this record.

The check returns affected, not affected, or incomplete. It does not guess a version that is missing from the record.

  • Packagist contao/core-bundle4.0.0 → 5.3.50
  • Packagist contao/core-bundle5.4.0-RC1 → 5.7.12

How to fix CVE-2026-107842

What to do

Three questions, each answered from this record only. Confirm the vendor advisory before you patch.

Should you patch?

No confirmed exploitation is on record for CVE-2026-107842. EPSS is 0.26%. Act only if a listed version of Contao: Protected page content is installed.

Which versions are affected?

Compare what you have installed with 4.0.0 → 5.3.50, 5.4.0-RC1 → 5.7.12. Compare the installed version with the linked vendor advisory before you change production.

What should an analyst verify?

CWE-200: Exposure of Sensitive Information. EPSS 0.26%. There is no CISA KEV listing. No Exploit-DB or Metasploit reference is linked. Use the source links for the original advisory.

Code

The project this record applies to. Exploit listings stay in References.

Timeline

Detection, updates, and resolution for this record.

  1. Oct 9, 2026 · Catalog

    Detected

    decides whether to filter protected pages out of search results based on the current value of , but the authorisation data lives per row in . Turning the setting off removes the filter without removing the rows, so protected pages that were indexed while it was on are returned to unauthenticated visitors such as title, URL and context snippet, even though the pages themselves still answer 401. ##

  2. Oct 9, 2026 · Catalog

    Fix available

    Packagist contao/core-bundle 4.0.0 → 5.3.50

  3. Oct 9, 2026 · Catalog

    Fix available

    Packagist contao/core-bundle 5.4.0-RC1 → 5.7.12

  4. Oct 9, 2026 · GitHub Advisory Database

    Fix available

    contao/core-bundle fixed in 5.3.50; contao/core-bundle fixed in 5.7.12

  5. Oct 9, 2026 · GitHub Advisory Database

    Fix available

    contao/core-bundle fixed in 5.3.50

  6. Oct 9, 2026 · GitHub Advisory Database

    Fix available

    contao/core-bundle fixed in 5.7.12

  7. Oct 9, 2026 · Catalog

    Updated

    decides whether to filter protected pages out of search results based on the current value of , but the authorisation data lives per row in . Turning the setting off removes the filter without removing the rows, so protected pages that were indexed while it was on are returned to unauthenticated visitors such as title, URL and context snippet, even though the pages themselves still answer 401. ##

Sources

References

Freshness

Last verified in this catalog Oct 18, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.