Vulnerability Monitor

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CVE-2020-5274

In Symfony before versions 5.0.5 and 4.4.5, some properties of the Exception were not properly escaped when the `ErrorHandler` rendered it stacktrace. In addition, the stacktrace were displayed even in a non-debug configuration. The ErrorHandler now escape alls properties of the exception, and the stacktrace is only display in debug configuration. This issue is patched in symfony/http-foundation versions 4.4.5 and 5.0.5

Security Impact Summary

This vulnerability carries a MEDIUM severity rating with a CVSS v3.1 score of 4.6, indicating it can be exploited remotely over the network with relatively low complexity though user interaction is required requiring only low-level privileges . The vulnerability impacts limited data confidentiality, limited integrity, for affected systems. Impacting 1 product from sensiolabs organizations running these solutions should prioritize assessment and patching.

Historical Context

Reported in 2020, this vulnerability emerged during an era marked by increased sophistication in supply chain attacks, cloud infrastructure vulnerabilities, and software-as-a-service (SaaS) security challenges. Security practices during this period emphasized zero-trust architectures, container security, and API protection.

Published

2020-03-30T20:15:19.633

Last Modified

2024-11-21T05:33:48.880

Status

Modified

Source

[email protected]

Severity

CVSSv3.1: 4.6 (MEDIUM)

CVSSv2 Vector

AV:N/AC:L/Au:S/C:P/I:P/A:N

Access Vector: NETWORK
Access Complexity: LOW
Authentication: SINGLE
Confidentiality Impact: PARTIAL
Integrity Impact: PARTIAL
Availability Impact: NONE

Exploitability Score

8.0

Impact Score

4.9

Weaknesses

Type: Secondary
CWE-209
Type: Primary
CWE-209

Affected Vendors & Products

Type	Vendor	Product	Version/Range	Vulnerable?
Application	sensiolabs	symfony	< 4.4.4	Yes
Application	sensiolabs	symfony	< 5.0.4	Yes

References

https://github.com/symfony/symfony/commit/629d21b800a15dc649fb0ae9ed7cd9211e7e45db Patch, Third Party Advisory ([email protected])
https://github.com/symfony/symfony/commit/cf80224589ac05402d4f72f5ddf80900ec94d5ad Patch, Third Party Advisory ([email protected])
https://github.com/symfony/symfony/security/advisories/GHSA-m884-279h-32v2 Third Party Advisory ([email protected])
https://github.com/symfony/symfony/commit/629d21b800a15dc649fb0ae9ed7cd9211e7e45db Patch, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://github.com/symfony/symfony/commit/cf80224589ac05402d4f72f5ddf80900ec94d5ad Patch, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://github.com/symfony/symfony/security/advisories/GHSA-m884-279h-32v2 Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)

How SecUtils Interprets This CVE

SecUtils normalizes and enriches National Vulnerability Database (NVD) records by standardizing vendor and product identifiers, aggregating vulnerability metadata from both NVD and MITRE sources, and providing structured context for security teams. For sensiolabs's affected products, we extract Common Platform Enumeration (CPE) data, Common Weakness Enumeration (CWE) classifications, CVSS severity metrics, and reference data to enable rapid vulnerability prioritization and asset correlation. This record contains no exploit code, proof-of-concept instructions, or attack methodologies—only defensive intelligence necessary for patch management, risk assessment, and security operations.