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Vulnerability details: VCID-bdhj-np35-sybt
Vulnerability ID VCID-bdhj-np35-sybt
Aliases CVE-2023-46734
GHSA-q847-2q57-wmr3
Summary Symfony potential Cross-site Scripting vulnerabilities in CodeExtension filters Symfony is a PHP framework for web and console applications and a set of reusable PHP components. Starting in versions 2.0.0, 5.0.0, and 6.0.0 and prior to versions 4.4.51, 5.4.31, and 6.3.8, some Twig filters in CodeExtension use `is_safe=html` but don't actually ensure their input is safe. As of versions 4.4.51, 5.4.31, and 6.3.8, Symfony now escapes the output of the affected filters.
Status Published
Exploitability 0.5
Weighted Severity 6.2
Risk 3.1
Affected and Fixed Packages Package Details
Weaknesses (3)
CWE-1035 OWASP Top Ten 2017 Category A9 - Using Components with Known Vulnerabilities
CWE-79 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
CWE-937 OWASP Top Ten 2013 Category A9 - Using Components with Known Vulnerabilities
System Score Found at
epss 0.02089 https://api.first.org/data/v1/epss?cve=CVE-2023-46734
epss 0.02089 https://api.first.org/data/v1/epss?cve=CVE-2023-46734
epss 0.02089 https://api.first.org/data/v1/epss?cve=CVE-2023-46734
epss 0.02089 https://api.first.org/data/v1/epss?cve=CVE-2023-46734
epss 0.02089 https://api.first.org/data/v1/epss?cve=CVE-2023-46734
epss 0.02089 https://api.first.org/data/v1/epss?cve=CVE-2023-46734
epss 0.02089 https://api.first.org/data/v1/epss?cve=CVE-2023-46734
epss 0.02089 https://api.first.org/data/v1/epss?cve=CVE-2023-46734
epss 0.02089 https://api.first.org/data/v1/epss?cve=CVE-2023-46734
epss 0.02089 https://api.first.org/data/v1/epss?cve=CVE-2023-46734
epss 0.02419 https://api.first.org/data/v1/epss?cve=CVE-2023-46734
epss 0.02419 https://api.first.org/data/v1/epss?cve=CVE-2023-46734
epss 0.02419 https://api.first.org/data/v1/epss?cve=CVE-2023-46734
epss 0.02419 https://api.first.org/data/v1/epss?cve=CVE-2023-46734
cvssv3.1_qr MODERATE https://github.com/advisories/GHSA-q847-2q57-wmr3
cvssv3.1 6.1 https://github.com/FriendsOfPHP/security-advisories/blob/master/symfony/symfony/CVE-2023-46734.yaml
generic_textual MODERATE https://github.com/FriendsOfPHP/security-advisories/blob/master/symfony/symfony/CVE-2023-46734.yaml
cvssv3.1 6.1 https://github.com/symfony/symfony
generic_textual MODERATE https://github.com/symfony/symfony
cvssv3.1 6.1 https://github.com/symfony/symfony/commit/5d095d5feb1322b16450284a04d6bb48d1198f54
generic_textual MODERATE https://github.com/symfony/symfony/commit/5d095d5feb1322b16450284a04d6bb48d1198f54
ssvc Track https://github.com/symfony/symfony/commit/5d095d5feb1322b16450284a04d6bb48d1198f54
cvssv3.1 6.1 https://github.com/symfony/symfony/commit/9da9a145ce57e4585031ad4bee37c497353eec7c
generic_textual MODERATE https://github.com/symfony/symfony/commit/9da9a145ce57e4585031ad4bee37c497353eec7c
ssvc Track https://github.com/symfony/symfony/commit/9da9a145ce57e4585031ad4bee37c497353eec7c
cvssv3.1 6.1 https://github.com/symfony/symfony/security/advisories/GHSA-q847-2q57-wmr3
cvssv3.1_qr MODERATE https://github.com/symfony/symfony/security/advisories/GHSA-q847-2q57-wmr3
generic_textual MODERATE https://github.com/symfony/symfony/security/advisories/GHSA-q847-2q57-wmr3
ssvc Track https://github.com/symfony/symfony/security/advisories/GHSA-q847-2q57-wmr3
cvssv3.1 6.1 https://lists.debian.org/debian-lts-announce/2023/11/msg00019.html
generic_textual MODERATE https://lists.debian.org/debian-lts-announce/2023/11/msg00019.html
ssvc Track https://lists.debian.org/debian-lts-announce/2023/11/msg00019.html
cvssv3.1 6.1 https://nvd.nist.gov/vuln/detail/CVE-2023-46734
generic_textual MODERATE https://nvd.nist.gov/vuln/detail/CVE-2023-46734
cvssv3.1 6.1 https://symfony.com/cve-2023-46734
generic_textual MODERATE https://symfony.com/cve-2023-46734
Reference id Reference type URL
https://api.first.org/data/v1/epss?cve=CVE-2023-46734
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-46734
https://github.com/symfony/symfony
https://github.com/symfony/symfony/commit/5d095d5feb1322b16450284a04d6bb48d1198f54
https://github.com/symfony/symfony/commit/9da9a145ce57e4585031ad4bee37c497353eec7c
https://lists.debian.org/debian-lts-announce/2023/11/msg00019.html
1055774 https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1055774
CVE-2023-46734 https://nvd.nist.gov/vuln/detail/CVE-2023-46734
CVE-2023-46734 https://symfony.com/cve-2023-46734
CVE-2023-46734.YAML https://github.com/FriendsOfPHP/security-advisories/blob/master/symfony/symfony/CVE-2023-46734.yaml
GHSA-q847-2q57-wmr3 https://github.com/advisories/GHSA-q847-2q57-wmr3
GHSA-q847-2q57-wmr3 https://github.com/symfony/symfony/security/advisories/GHSA-q847-2q57-wmr3
USN-7272-1 https://usn.ubuntu.com/7272-1/
No exploits are available.
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N Found at https://github.com/FriendsOfPHP/security-advisories/blob/master/symfony/symfony/CVE-2023-46734.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:N/UI:R/S:C/C:L/I:L/A:N Found at https://github.com/symfony/symfony
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:N/UI:R/S:C/C:L/I:L/A:N Found at https://github.com/symfony/symfony/commit/5d095d5feb1322b16450284a04d6bb48d1198f54
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: SSVCv2/E:N/A:N/T:P/P:M/B:A/M:M/D:T/2024-09-03T15:11:26Z/ Found at https://github.com/symfony/symfony/commit/5d095d5feb1322b16450284a04d6bb48d1198f54
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N Found at https://github.com/symfony/symfony/commit/9da9a145ce57e4585031ad4bee37c497353eec7c
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: SSVCv2/E:N/A:N/T:P/P:M/B:A/M:M/D:T/2024-09-03T15:11:26Z/ Found at https://github.com/symfony/symfony/commit/9da9a145ce57e4585031ad4bee37c497353eec7c
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N Found at https://github.com/symfony/symfony/security/advisories/GHSA-q847-2q57-wmr3
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: SSVCv2/E:N/A:N/T:P/P:M/B:A/M:M/D:T/2024-09-03T15:11:26Z/ Found at https://github.com/symfony/symfony/security/advisories/GHSA-q847-2q57-wmr3
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N Found at https://lists.debian.org/debian-lts-announce/2023/11/msg00019.html
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: SSVCv2/E:N/A:N/T:P/P:M/B:A/M:M/D:T/2024-09-03T15:11:26Z/ Found at https://lists.debian.org/debian-lts-announce/2023/11/msg00019.html
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N Found at https://nvd.nist.gov/vuln/detail/CVE-2023-46734
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:N/UI:R/S:C/C:L/I:L/A:N Found at https://symfony.com/cve-2023-46734
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 0.83967
EPSS Score 0.02089
Published At April 2, 2026, 12:55 p.m.
Date Actor Action Source VulnerableCode Version
2026-04-01T12:52:05.995921+00:00 GitLab Importer Import https://gitlab.com/gitlab-org/advisories-community/-/blob/main/packagist/symfony/symfony/CVE-2023-46734.yml 38.0.0