Prevent injection of invalid entity ids for "autocomplete" fields
Impact
Under certain circumstances, an attacker could successfully submit an entity id for an EntityType that is not part of the valid choices.
Affected applications are any that use:
- A custom
query_builderoption to limit the valid results; AND - An
EntityTypewith'autocomplete' => trueor a custom AsEntityAutocompleteField.
Under this circumstance, if an id is submitted, it is accepted even if the matching record would not be returned by the custom query built with query_builder.
Patches
The problem has been fixed in symfony/ux-autocomplete version 2.11.2.
Workarounds
Upgrade to version 2.11.2 or greater of symfony/ux-autocomplete or perform extra validation after submit to verify the selected option is valid.
Affected software
Click a technology to see all vulnerabilities affecting it.
| Platform | Package | Vulnerable versions | Fixed in |
|---|---|---|---|
| Composer package | symfony/ux-autocomplete | < 2.11.2 | 2.11.2 |
References
- https://github.com/symfony/ux-autocomplete/security/advisories/GHSA-4cpv-669c-r79x
- https://nvd.nist.gov/vuln/detail/CVE-2023-41336
- https://github.com/symfony/ux-autocomplete/commit/fabcb2eee14b9e84a45b276711853a560b5d770c
- https://github.com/FriendsOfPHP/security-advisories/blob/master/symfony/ux-autocomplete/CVE-2023-41336.yaml
- https://github.com/symfony/ux-autocomplete
- https://symfony.com/bundles/ux-autocomplete/current/index.html#usage-in-a-form-with-ajax
- CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N- Weakness (CWE)
CWE-20- Platform
- Composer
- Package
symfony/ux-autocomplete- Disclosed
- 11.09.2023
- Updated
- 11.10.2026 10:22
Sources and licenses
OSV / GitHub Advisory Database - GHSA-4cpv-669c-r79x - CC BY 4.0
Vulnerability history: symfony/ux-autocomplete
All published vulnerabilities of this package (Composer package), newest first. Shows whether this is a one-off slip or a package that needs watching.
- Total entries
- 3
- First → latest
- 09.2023 06.2026
- Without a fix
- 0
- Exploited in attacks
- 0
Severity breakdown
- Medium 3
Disclosures per year
- 2023: 1
- 2024: 0
- 2025: 0
- 2026: 2
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Prevent injection of invalid entity ids for "autocomplete" fields this entry
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