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Vulnerabilities

Vulnerability · CVE-2024-50340

sensiolabs symfony Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection')

Published Sep 10, 2026 · catalog updated Sep 10, 2026 · sensiolabs symfony Improper Neutralization

Patch now

CVE-2024-50340 is in the CISA known-exploited catalog. Confirm sensiolabs symfony Improper Neutralization against the vendor advisory and apply that fix. The CVSS score does not change the priority.

Gaps on this record

  • The stored product name is a package slug. The name on this page is taken from the title (sensiolabs symfony Improper Neutralization).
  • No version range is stored. A customer cannot check an installed version against this record.
Severity
Unknown—
Known exploitation
CISA KEV and VulnCheck KEV
EPSS
63.60%
Remediation
Remediation guidance
Affected products
vendor sensiolabs symfony

symfony/runtime is a module for the Symphony PHP framework which enables decoupling PHP applications from global state. When the php directive is set to , and users call any URL with a special crafted query string, they are able to change the environment or debug mode used by the kernel when handling the request. As of versions 5.4.46, 6.4.14, and 7.1.7 the now ignores the values for non-SAPI PHP runtimes. All users are advised to upgrade. There are no known workarounds for this vulnerability.

Are you affected?

Enter the version you run. The result uses only the ranges stored on this record.

The check returns affected, not affected, or incomplete. It does not guess a version that is missing from the record.

  • vendor sensiolabs symfonyversion unspecified

How to fix CVE-2024-50340

What to do

Three questions, each answered from this record only. Confirm the vendor advisory before you patch.

Should you patch?

CVE-2024-50340 is in the CISA known-exploited catalog. Confirm sensiolabs symfony Improper Neutralization against the vendor advisory and apply that fix. The CVSS score does not change the priority.

Which versions are affected?

Affected version ranges are not on this record. Apply remediations or mitigations per vendor instructions or discontinue use of the product if remediation or mitigations are unavailable.

What should an analyst verify?

No weakness class is stored. EPSS 63.60%. The CISA KEV listing is the exploitation evidence. No Exploit-DB or Metasploit reference is linked. Use the source links for the original advisory.

Code

The project this record applies to. Exploit listings stay in References.

No public source repository is identified for this product.

Timeline

Detection, updates, and resolution for this record.

  1. Sep 10, 2026 · VulnCheck KEV

    Detected

    symfony/runtime is a module for the Symphony PHP framework which enables decoupling PHP applications from global state. When the php directive is set to , and users call any URL with a special crafted query string, they are able to change the environment or debug mode used by the kernel when handling the request. As of versions 5.4.46, 6.4.14, and 7.1.7 the now ignores the values for non-SAPI PHP

  2. Sep 10, 2026 · CISA KEV

    Known exploited

    Apply remediations or mitigations per vendor instructions or discontinue use of the product if remediation or mitigations are unavailable.

Sources

  • CVE.orgVulnerability recordCVE-2024-50340

    Official CVE identifier

    cve.org
  • FIRST EPSSExploitation probabilityCVE-2024-50340

    30-day exploitation probability 63.6%

    first.org
  • VulnCheck KEVConfirmed exploitationCVE-2024-50340

    symfony/runtime is a module for the Symphony PHP framework which enables decoupling PHP applications from global state. When the php directive is set to , and users call any URL with a special crafted query string, they are able to change the environment or debug mode used by the

    vulncheck.com

References

Freshness

Last verified in this catalog Oct 17, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.