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TI-2026-70128 Aliases CVE-2026-107842GHSA-x2rp-9qf7-2fmq

Contao search exposes protected page content to anonymous visitors

Priority LOW 30CWE-200Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
Information disclosure
Confidentiality · integrity · availability
Low · None · None
Fix status
Fixed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA and GitHub. Impact type from CWE-200.

Summary

Contao from 4.0.0 before 5.3.50 and from 5.4.0-RC1 before 5.7.12 discloses protected page titles, URLs and indexed text to unauthenticated visitors. After the contao.search.index_protected setting is disabled, search rows indexed while protection was enabled remain in tl_search, and ModuleSearch returns them (CWE-200). The protected pages still refuse access, so page access itself is not bypassed.

Written with Claude Haiku 5.5 from the sources below · 2026-10-29

Description from the CNA

Contao is an Open Source CMS. From version 4.0.0 until 5.3.50 and 5.7.12, ModuleSearch can disclose protected page titles, URLs, and indexed context snippets to unauthenticated visitors when contao.search.index_protected is changed from enabled to disabled. Authorization metadata is stored per row in tl_search, but disabling the setting removes the protected-row filter without deleting rows indexed while protection was enabled. The protected pages continue to return an authorization response, so this issue exposes search metadata and indexed text rather than bypassing page access. This issue is fixed in versions 5.3.50 and 5.7.12.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00262 18th percentileScored 2026-11-07
Fix Fixed contao (contao): 5.3.50, 5.7.12contao/core-bundle (Packagist): 5.3.50, 5.7.12

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
Yes
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
contaocontao4.0.0 to before 5.3.50; 5.4.0-RC1 to before 5.7.125.3.50, 5.7.12Patch availableCNA
—contao/core-bundle (Packagist)4.0.0 to before 5.3.505.3.50Patch availableGHSA-x2rp-9qf7-2fmq
—contao/core-bundle (Packagist)5.4.0-RC1 to before 5.7.125.7.12Patch availableGHSA-x2rp-9qf7-2fmq
  • contao Vendorcontao Affected 4.0.0 to before 5.3.50; 5.4.0-RC1 to before 5.7.12 Fixed in 5.3.50, 5.7.12 Patch available CNA
  • contao/core-bundle (Packagist) Vendor— Affected 4.0.0 to before 5.3.50 Fixed in 5.3.50 Patch available GHSA-x2rp-9qf7-2fmq
  • contao/core-bundle (Packagist) Vendor— Affected 5.4.0-RC1 to before 5.7.12 Fixed in 5.7.12 Patch available GHSA-x2rp-9qf7-2fmq

CPE names Threatist (inferred) · 1

Inferred from how NVD named this product before; not given by a source.

CPEVersionsRoleVendor
cpe:2.3:a:contao:contao:*:*:*:*:*:*:*:*——contao
  • cpe:2.3:a:contao:contao:*:*:*:*:*:*:*:* Versions — — ·contao

Remediation

Update contao/core-bundle to version 5.3.50 if you run a version from 4.0.0 before 5.3.50, or to version 5.7.12 if you run a version from 5.4.0-RC1 before 5.7.12. The sources list these fixed versions for contao/core-bundle, and no fixed version is listed for the contao product itself.

Written with Claude Haiku 5.5 from the sources below · 2026-10-29

  • Fix · CNA contao (contao) Fixed in 5.3.50, 5.7.12
  • Fix · GHSA-x2rp-9qf7-2fmq contao/core-bundle (Packagist) Fixed in 5.3.50 Advisory →
  • Fix · GHSA-x2rp-9qf7-2fmq contao/core-bundle (Packagist) Fixed in 5.7.12 Advisory →

Timeline

  1. 2026-10-10 Threatist record created from CVE-2026-107842
  2. 2026-10-10 Alias added: GHSA-x2rp-9qf7-2fmq
  3. 2026-10-10 Fix available: Packagist/contao/[email protected], Packagist/contao/[email protected] · GHSA-x2rp-9qf7-2fmq
  4. 2026-10-10 CVSS score added · GHSA-x2rp-9qf7-2fmq
  5. 2026-10-10 Weakness changed · GHSA-x2rp-9qf7-2fmq
  6. 2026-10-10 5 new references · GHSA-x2rp-9qf7-2fmq
  7. 2026-10-13 CISA SSVC decision points changed

References

Other 5

  • TI-2022-09661 Contao Managed Edition v1.5.0 was discovered to contain a remote command execution (RCE)… CVSS 3.1CRITICAL 9.8
  • TI-2024-30849 Unrestricted file upload in Contao CVSS 3.1MEDIUM 6.4
  • TI-2023-18600 Contao cross site scripting vulnerability via input unit widget CVSS 3.1MEDIUM 6.5
  • TI-2014-01453 Contao CMS through 3.2.4 has PHP Object Injection Vulnerabilities CVSS 3.1CRITICAL 9.8
  • TI-2022-08709 Cross site scripting via canonical tag CVSS 3.1HIGH 7.2
  • TI-2019-08602 Contao 4.x allows SQL Injection. CVSS 3.0CRITICAL 9.8
See all 52 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences