SCA: security update for typo3/cms, typo3/cms-core, typo3/cms-form (GHSA-2r6j-862c-m2v2)

high Tenable Self-Hosted Container Security Plugin ID 409062

Description

There are packages installed that are affected by a vulnerability referenced in the following CVE:

- TYPO3 is an open source PHP based web content management system. In TYPO3 before versions 8.7.40, 9.5.25,
10.4.14, 11.1.1, due to the lack of ensuring file extensions belong to configured allowed mime-types,
attackers can upload arbitrary data with arbitrary file extensions - however, default _fileDenyPattern_
successfully blocked files like _.htaccess_ or _malicious.php_. Besides that,
_UploadedFileReferenceConverter_ transforming uploaded files into proper FileReference domain model
objects handles possible file uploads for other extensions as well - given those extensions use the
Extbase MVC framework, make use of FileReference items in their direct or inherited domain model
definitions and did not implement their own type converter. In case this scenario applies,
_UploadedFileReferenceConverter_ accepts any file mime-type and persists files in the default location. In
any way, uploaded files are placed in the default location _/fileadmin/user_upload/_, in most scenarios
keeping the submitted filename - which allows attackers to directly reference files, or even correctly
guess filenames used by other individuals, disclosing this information. No authentication is required to
exploit this vulnerability. This is fixed in versions 8.7.40, 9.5.25, 10.4.14, 11.1.1. (CVE-2021-21355)

See Also

https://github.com/advisories/GHSA-2r6j-862c-m2v2

Plugin Details

Severity: High

ID: 409062

Version: Revision 1.5

Type: Local

Family: SCA Checks

Published: 1/23/2025

Updated: 7/2/2026

Supported Sensors: Tenable Cloud Security, Tenable Self-Hosted Container Security

Risk Information

VPR

Risk Factor: Low

Score: 3.9

Percentile: 52.21

Vendor

Vendor Severity: High

CVSS v2

Risk Factor: High

Base Score: 7.5

Temporal Score: 5.5

Vector: CVSS2#AV:N/AC:L/Au:N/C:P/I:P/A:P

CVSS Score Source: CVE-2021-21355

CVSS v3

Risk Factor: High

Base Score: 8.6

Temporal Score: 7.5

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:H/A:L

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

Vulnerability Information

Exploit Ease: No known exploits are available

Patch Publication Date: 3/23/2021

Vulnerability Publication Date: 3/23/2021

Reference Information

CVE: CVE-2021-21355