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CSRF token exposure in TYPO3 extension

Moderate severity GitHub Reviewed Published Sep 2, 2021 to the GitHub Advisory Database • Updated Jan 27, 2023

Package

composer lms/routes (Composer)

Affected versions

< 2.1.1

Patched versions

2.1.1

Description

When using the CsrfTokenViewHelper the extension discloses the user's session identifier to HTML output without processing of additional cryptographic hashing algorithms. This vulnerability cannot be exploited directly and occurs in combination with a chained attack - like for instance Cross Site Scripting in the frontend output.

References

Published by the National Vulnerability Database Aug 13, 2021
Reviewed Aug 30, 2021
Published to the GitHub Advisory Database Sep 2, 2021
Last updated Jan 27, 2023

Severity

Moderate
6.3
/ 10

CVSS base metrics

Attack vector
Network
Attack complexity
High
Privileges required
Low
User interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
None
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:N/E:F/RL:O/RC:C

EPSS score

0.178%
(56th percentile)

Weaknesses

CVE ID

CVE-2021-36793

GHSA ID

GHSA-vpw5-grxx-v396

Source code

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