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Vulnerability details: VCID-9g62-zd1x-3bdg
Vulnerability ID VCID-9g62-zd1x-3bdg
Aliases CVE-2019-12747
GHSA-86hp-xrhj-fhpq
Summary TYPO3 Vulnerable to Insecure Deserialization TYPO3 8.x through 8.7.26 and 9.x through 9.5.7 allows Deserialization of Untrusted Data.
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 8.8 http://github.com/TYPO3/typo3/commit/647aa7afa582983cddc547fa106d31e2b1ef34fe
generic_textual HIGH http://github.com/TYPO3/typo3/commit/647aa7afa582983cddc547fa106d31e2b1ef34fe
epss 0.01559 https://api.first.org/data/v1/epss?cve=CVE-2019-12747
epss 0.01559 https://api.first.org/data/v1/epss?cve=CVE-2019-12747
epss 0.01559 https://api.first.org/data/v1/epss?cve=CVE-2019-12747
epss 0.01559 https://api.first.org/data/v1/epss?cve=CVE-2019-12747
epss 0.01559 https://api.first.org/data/v1/epss?cve=CVE-2019-12747
epss 0.01559 https://api.first.org/data/v1/epss?cve=CVE-2019-12747
epss 0.01559 https://api.first.org/data/v1/epss?cve=CVE-2019-12747
epss 0.01559 https://api.first.org/data/v1/epss?cve=CVE-2019-12747
epss 0.01559 https://api.first.org/data/v1/epss?cve=CVE-2019-12747
cvssv3.1_qr HIGH https://github.com/advisories/GHSA-86hp-xrhj-fhpq
cvssv3.1 8.8 https://github.com/FriendsOfPHP/security-advisories/blob/master/typo3/cms-core/CVE-2019-12747.yaml
generic_textual HIGH https://github.com/FriendsOfPHP/security-advisories/blob/master/typo3/cms-core/CVE-2019-12747.yaml
cvssv3.1 8.8 https://github.com/FriendsOfPHP/security-advisories/blob/master/typo3/cms/CVE-2019-12747.yaml
generic_textual HIGH https://github.com/FriendsOfPHP/security-advisories/blob/master/typo3/cms/CVE-2019-12747.yaml
cvssv3.1 8.8 https://github.com/TYPO3-CMS/core
generic_textual HIGH https://github.com/TYPO3-CMS/core
cvssv3.1 8.8 https://nvd.nist.gov/vuln/detail/CVE-2019-12747
generic_textual HIGH https://nvd.nist.gov/vuln/detail/CVE-2019-12747
cvssv3.1 8.8 https://typo3.org/cms/release-news/typo3-8-release-notes
generic_textual HIGH https://typo3.org/cms/release-news/typo3-8-release-notes
cvssv3.1 8.8 https://typo3.org/security/advisory/typo3-core-sa-2019-020
generic_textual HIGH https://typo3.org/security/advisory/typo3-core-sa-2019-020
Reference id Reference type URL
http://github.com/TYPO3/typo3/commit/647aa7afa582983cddc547fa106d31e2b1ef34fe
https://api.first.org/data/v1/epss?cve=CVE-2019-12747
https://github.com/FriendsOfPHP/security-advisories/blob/master/typo3/cms-core/CVE-2019-12747.yaml
https://github.com/FriendsOfPHP/security-advisories/blob/master/typo3/cms/CVE-2019-12747.yaml
https://github.com/TYPO3-CMS/core
https://nvd.nist.gov/vuln/detail/CVE-2019-12747
https://typo3.org/cms/release-news/typo3-8-release-notes
https://typo3.org/security/advisory/typo3-core-sa-2019-020
GHSA-86hp-xrhj-fhpq https://github.com/advisories/GHSA-86hp-xrhj-fhpq
No exploits are available.
Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H Found at http://github.com/TYPO3/typo3/commit/647aa7afa582983cddc547fa106d31e2b1ef34fe
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:L/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/CVE-2019-12747.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:L/PR:L/UI:N/S:U/C:H/I:H/A:H Found at https://github.com/FriendsOfPHP/security-advisories/blob/master/typo3/cms/CVE-2019-12747.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:L/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:L/PR:L/UI:N/S:U/C:H/I:H/A:H Found at https://nvd.nist.gov/vuln/detail/CVE-2019-12747
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:L/PR:L/UI:N/S:U/C:H/I:H/A:H Found at https://typo3.org/cms/release-news/typo3-8-release-notes
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:L/PR:L/UI:N/S:U/C:H/I:H/A:H Found at https://typo3.org/security/advisory/typo3-core-sa-2019-020
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
Exploit Prediction Scoring System (EPSS)
Percentile 0.81403
EPSS Score 0.01559
Published At April 1, 2026, 12:55 p.m.
Date Actor Action Source VulnerableCode Version
2026-04-01T13:07:51.668842+00:00 GithubOSV Importer Import https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2022/05/GHSA-86hp-xrhj-fhpq/GHSA-86hp-xrhj-fhpq.json 38.0.0