CVE-2024-50340 (GCVE-0-2024-50340)
Vulnerability from cvelistv5 – Published: 2024-11-06 21:09 – Updated: 2024-11-07 15:29Title
Ability to change environment from query in symfony/runtime
Summary
symfony/runtime is a module for the Symphony PHP framework which enables decoupling PHP applications from global state. When the `register_argv_argc` php directive is set to `on` , 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 `SymfonyRuntime` now ignores the `argv` values for non-SAPI PHP runtimes. All users are advised to upgrade. There are no known workarounds for this vulnerability.
Severity
7.3 (High)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2024-11-07 15:27 UTC
CWE
- CWE-74 - Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection')
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://github.com/symfony/symfony/security/advis… | x_refsource_CONFIRM |
| https://github.com/symfony/symfony/commit/a77b308… | x_refsource_MISC |
Impacted products
2 products
| Vendor | Product | Version | CPE status | |
|---|---|---|---|---|
| symfony | symfony |
Affected:
< 5.4.46
Affected: >= 6.0.0, < 6.4.14 Affected: >= 7.0.0, < 7.1.7 |
guessed | |
| sensiolabs | symfony |
Affected:
0 , < 5.4.46
(custom)
Affected: 6.0.0 , < 6.4.14 (custom) Affected: 7.0.0 , < 7.1.7 (custom) cpe:2.3:a:sensiolabs:symfony:*:*:*:*:*:*:*:* |
Previdian
Known Exploited Vulnerability - GCVE BCP-07 Compliant
KEV entry ID: e4bf7c60-a09e-4d8e-b185-9f3ce04eecac
Exploited: Yes
Timestamps
First Seen: 2026-09-10
Asserted: 2026-09-10
Scope
Notes: Ability to change environment from query in symfony/runtime | Affected: Symfony / symfony | CVSS: 7.3 (HIGH) | EPSS: 0.64429 | Used in malware: unknown | Not yet in CISA KEV: True
Evidence
Type: Public Report
Signal: Successful Exploitation
Confidence: 70%
Source: previdian
Details
| Feed | Previdian (previdian.com) |
|---|---|
| Title | Ability to change environment from query in symfony/runtime |
| Cve Id | CVE-2024-50340 |
| Vendor | Symfony |
| Ghsa Id | None |
| Product | symfony |
| Added Date | 2026-09-10T00:00:00.000Z |
| Cvss Score | 7.3 |
| Epss Score | 0.64429 |
| Previous Ids | |
| Cvss Severity | HIGH |
| Virtual Patch | False |
| Cvss Estimated | False |
| Epss Percentile | 0.99185 |
| Used In Malware | unknown |
| Vulnerability Id | CVE-2024-50340 |
| Ahead Of Cisa Kev | None |
| Not Yet In Cisa Kev | True |
References
Created: 2026-09-11 11:00 UTC
| Updated: 2026-09-11 11:00 UTC
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Experimental. This forecast is provided for visualization only and may change without notice. Do not use it for operational decisions.
Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.
Sightings
| Author | Source | Type | Date | Other |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
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The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the
vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base
model, served locally by ML-Gateway.
They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
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Related by attack behaviour
Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.
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