Staging Environment: Content and features may be unstable or change without notice.
Search for packages
Package details: pkg:composer/symfony/serializer@6.2.11
purl pkg:composer/symfony/serializer@6.2.11
Next non-vulnerable version 6.3.8
Latest non-vulnerable version 6.3.8
Risk 3.1
Vulnerabilities affecting this package (3)
Vulnerability Summary Fixed by
VCID-7hh3-16j3-4yaf
Aliases:
CVE-2023-46733
GHSA-m2wj-r6g3-fxfx
Symfony possible session fixation vulnerability Symfony is a PHP framework for web and console applications and a set of reusable PHP components. Starting in versions 5.4.21 and 6.2.7 and prior to versions 5.4.31 and 6.3.8, `SessionStrategyListener` does not migrate the session after every successful login. It does so only in case the logged in user changes by means of checking the user identifier. In some use cases, the user identifier does not change between the verification phase and the successful login, while the token itself changes from one type (partially-authenticated) to another (fully-authenticated). When this happens, the session id should be regenerated to prevent possible session fixations, which is not the case at the moment. As of versions 5.4.31 and 6.3.8, Symfony now checks the type of the token in addition to the user identifier before deciding whether the session id should be regenerated.
6.3.8
Affected by 0 other vulnerabilities.
VCID-bdhj-np35-sybt
Aliases:
CVE-2023-46734
GHSA-q847-2q57-wmr3
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.
6.3.8
Affected by 0 other vulnerabilities.
VCID-znfv-ngqc-fudw
Aliases:
CVE-2023-46735
GHSA-72x2-5c85-6wmr
Cross-site scripting Symfony is a PHP framework for web and console applications and a set of reusable PHP components. Starting in version 6.0.0 and prior to version 6.3.8, the error message in `WebhookController` returns unescaped user-submitted input. As of version 6.3.8, `WebhookController` now does not return any user-submitted input in its response.
6.3.8
Affected by 0 other vulnerabilities.
Vulnerabilities fixed by this package (0)
Vulnerability Summary Aliases
This package is not known to fix vulnerabilities.

Date Actor Action Vulnerability Source VulnerableCode Version
2026-04-16T22:43:00.682407+00:00 GitLab Importer Affected by VCID-7hh3-16j3-4yaf https://gitlab.com/gitlab-org/advisories-community/-/blob/main/packagist/symfony/serializer/CVE-2023-46733.yml 38.4.0
2026-04-16T22:43:00.264188+00:00 GitLab Importer Affected by VCID-bdhj-np35-sybt https://gitlab.com/gitlab-org/advisories-community/-/blob/main/packagist/symfony/serializer/CVE-2023-46734.yml 38.4.0
2026-04-16T22:42:55.035077+00:00 GitLab Importer Affected by VCID-znfv-ngqc-fudw https://gitlab.com/gitlab-org/advisories-community/-/blob/main/packagist/symfony/serializer/CVE-2023-46735.yml 38.4.0
2026-04-12T00:02:33.729189+00:00 GitLab Importer Affected by VCID-7hh3-16j3-4yaf https://gitlab.com/gitlab-org/advisories-community/-/blob/main/packagist/symfony/serializer/CVE-2023-46733.yml 38.3.0
2026-04-12T00:02:33.424384+00:00 GitLab Importer Affected by VCID-bdhj-np35-sybt https://gitlab.com/gitlab-org/advisories-community/-/blob/main/packagist/symfony/serializer/CVE-2023-46734.yml 38.3.0
2026-04-12T00:02:27.507952+00:00 GitLab Importer Affected by VCID-znfv-ngqc-fudw https://gitlab.com/gitlab-org/advisories-community/-/blob/main/packagist/symfony/serializer/CVE-2023-46735.yml 38.3.0
2026-04-03T00:05:33.228127+00:00 GitLab Importer Affected by VCID-7hh3-16j3-4yaf https://gitlab.com/gitlab-org/advisories-community/-/blob/main/packagist/symfony/serializer/CVE-2023-46733.yml 38.1.0
2026-04-03T00:05:32.920604+00:00 GitLab Importer Affected by VCID-bdhj-np35-sybt https://gitlab.com/gitlab-org/advisories-community/-/blob/main/packagist/symfony/serializer/CVE-2023-46734.yml 38.1.0
2026-04-03T00:05:26.841444+00:00 GitLab Importer Affected by VCID-znfv-ngqc-fudw https://gitlab.com/gitlab-org/advisories-community/-/blob/main/packagist/symfony/serializer/CVE-2023-46735.yml 38.1.0