Contao Sends Cookie Header to External Urls in Protected Pages, Patch Available
CVE-2024-28235

6.5MEDIUM

Key Information:

Vendor

Contao

Status
Contao
Vendor
CVE Published:
9 April 2024

What is CVE-2024-28235?

Contao, an open-source content management system, has a vulnerability where it incorrectly handles cookie headers by sending them to external URLs when checking for broken links on protected pages. This flaw can expose session cookies, potentially leading to unauthorized access. Versions prior to 4.13.40 and 5.3.4 are affected. To mitigate the risk, users are advised to disable crawling on protected pages until patches are applied. Both patched versions address this issue effectively.

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Affected Version(s)

contao >= 4.9.0, < 4.13.40 < 4.9.0, 4.13.40

contao >= 5.0.0-RC1, < 5.3.4 < 5.0.0-RC1, 5.3.4

References

https://github.com/contao/contao/security/advisories/GHSA...
x_refsource_CONFIRM
https://github.com/contao/contao/commit/73a2770e2d3535ec9...
x_refsource_MISC
https://github.com/contao/contao/commit/79b7620d01ce8f46c...
x_refsource_MISC

CVSS V3.1

Score:
6.5
Severity:
MEDIUM
Confidentiality:
High
Integrity:
None
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
Low
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

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