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Vulnerability details: VCID-the9-7p23-q7ac
Vulnerability ID VCID-the9-7p23-q7ac
Aliases GHSA-96jg-pmc4-cx39
Summary TYPO3 CMS Insecure Deserialization It has been discovered that the Form Framework (system extension `form`) is vulnerable to Insecure Deserialization when being used with the additional PHP PECL package `yaml`, which is capable of unserializing YAML contents to PHP objects. A valid backend user account as well as having PHP setting `yaml.decode_php` enabled is needed to exploit this vulnerability (which is the default value according to PHP documentation).
Status Published
Exploitability 0.5
Weighted Severity 8.0
Risk 4.0
Affected and Fixed Packages Package Details
Weaknesses (3)
CWE-502 Deserialization of Untrusted Data
CWE-937 OWASP Top Ten 2013 Category A9 - Using Components with Known Vulnerabilities
CWE-1035 OWASP Top Ten 2017 Category A9 - Using Components with Known Vulnerabilities
System Score Found at
cvssv3.1_qr HIGH https://github.com/advisories/GHSA-96jg-pmc4-cx39
cvssv3.1 7.5 https://github.com/FriendsOfPHP/security-advisories/blob/master/typo3/cms-core/2018-07-12-4.yaml
generic_textual HIGH https://github.com/FriendsOfPHP/security-advisories/blob/master/typo3/cms-core/2018-07-12-4.yaml
cvssv3.1 7.5 https://github.com/TYPO3-CMS/core
generic_textual HIGH https://github.com/TYPO3-CMS/core
cvssv3.1 7.5 https://typo3.org/security/advisory/typo3-core-sa-2018-004
generic_textual HIGH https://typo3.org/security/advisory/typo3-core-sa-2018-004
Reference id Reference type URL
https://github.com/FriendsOfPHP/security-advisories/blob/master/typo3/cms-core/2018-07-12-4.yaml
https://github.com/TYPO3-CMS/core
https://typo3.org/security/advisory/typo3-core-sa-2018-004
GHSA-96jg-pmc4-cx39 https://github.com/advisories/GHSA-96jg-pmc4-cx39
No exploits are available.
Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H Found at https://github.com/FriendsOfPHP/security-advisories/blob/master/typo3/cms-core/2018-07-12-4.yaml
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H Found at https://github.com/TYPO3-CMS/core
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H Found at https://typo3.org/security/advisory/typo3-core-sa-2018-004
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none

No EPSS data available for this vulnerability.

Date Actor Action Source VulnerableCode Version
2025-07-01T12:11:21.543885+00:00 GithubOSV Importer Import https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2024/05/GHSA-96jg-pmc4-cx39/GHSA-96jg-pmc4-cx39.json 36.1.3