CVE-2023-41336Network attack vector

Unauthorized entity selection via ignored query constraints

Published Sep 11, 2023 · Updated Sep 26, 2024

Improper input validation in Symfony UX Autocomplete before 2.11.2 allows remote attackers to submit disallowed EntityType record IDs. AutocompleteEntityTypeSubscriber rebuilds its pre-submit lookup from the entity repository instead of applying the configured query_builder, so an ID excluded from valid choices is loaded and accepted. Exposure requires both an autocomplete-enabled EntityType and a custom query_builder that limits valid results; successful submission can select a record the application intended to exclude.

CVSS severity6.5
Medium
EPSS probability0.64%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Improper input validation in Symfony UX Autocomplete before 2.11.2 allows remote attackers to submit disallowed EntityType record IDs. AutocompleteEntityTypeSubscriber rebuilds its pre-submit lookup from the entity repository instead of applying the configured query_builder, so an ID excluded from valid choices is loaded and accepted. Exposure requires both an autocomplete-enabled EntityType and a custom query_builder that limits valid results; successful submission can select a record the application intended to exclude.

The record

CVE
CVE-2023-41336
Published
Sep 11, 2023
Updated
Sep 26, 2024
Vendor
Symfony
Product
Symfony UX Autocomplete
Classifications
CWE-20, T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Sep 11, 2023CVE publishedPublication date reported by the CVE source.
  2. Sep 26, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=0 <2.11.2
  2. Affected versionversion=< 2.11.2

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Symfony · Symfony UX Autocompleteversion=0 <2.11.2; version=< 2.11.2

Published CVSS scores

6.5GitHub, Inc.CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N
6.5NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-20Improper Input Validation
T1190Exploit Public-Facing Application

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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