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Purlpkg:composer/symfony/error-handler@4.4.2
Typecomposer
Namespacesymfony
Nameerror-handler
Version4.4.2
Qualifiers
Subpath
Is_vulnerabletrue
Next_non_vulnerable_version4.4.4
Latest_non_vulnerable_version5.0.4
Affected_by_vulnerabilities
0
url VCID-ugce-e42m-1fgj
vulnerability_id VCID-ugce-e42m-1fgj
summary 
Exceptions displayed in non-debug configurations in Symfony
Description
-----------

When `ErrorHandler` renders an exception HTML page, it uses un-escaped properties from the related Exception class to render the stacktrace. The security issue comes from the fact that the stacktraces were also displayed in non-`debug` environments.

Resolution
----------

The `ErrorHandler` class now escapes all properties coming from the related Exception, and the stacktrace is not displayed anymore in non-`debug` environments.

The patches for this issue are available [here](https://github.com/symfony/symfony/commit/cf80224589ac05402d4f72f5ddf80900ec94d5ad) and [here](https://github.com/symfony/symfony/commit/629d21b800a15dc649fb0ae9ed7cd9211e7e45db) for branch 4.4.

Credits
-------

I would like to thank Luka Sikic for reporting & Yonel Ceruto and Jérémy Derussé for fixing the issue.
references
0
reference_url https://api.first.org/data/v1/epss?cve=CVE-2020-5274
reference_id
reference_type
scores
0
value 0.00267
scoring_system epss
scoring_elements 0.50159
published_at 2026-04-01T12:55:00Z
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published_at 2026-04-21T12:55:00Z
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published_at 2026-04-18T12:55:00Z
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published_at 2026-04-16T12:55:00Z
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published_at 2026-04-13T12:55:00Z
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published_at 2026-04-12T12:55:00Z
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published_at 2026-04-02T12:55:00Z
url https://api.first.org/data/v1/epss?cve=CVE-2020-5274
1
reference_url https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-5274
reference_id
reference_type
scores
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reference_url https://github.com/FriendsOfPHP/security-advisories/blob/master/symfony/error-handler/CVE-2020-5274.yaml
reference_id
reference_type
scores
0
value 4.6
scoring_system cvssv3.1
scoring_elements CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:L/A:N
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reference_id
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4
reference_url https://github.com/symfony/symfony/commit/629d21b800a15dc649fb0ae9ed7cd9211e7e45db
reference_id
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scores
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reference_id
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1
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scoring_system generic_textual
scoring_elements
url https://github.com/symfony/symfony/commit/cf80224589ac05402d4f72f5ddf80900ec94d5ad
6
reference_url https://github.com/symfony/symfony/security/advisories/GHSA-m884-279h-32v2
reference_id
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scores
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1
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scoring_elements
url https://github.com/symfony/symfony/security/advisories/GHSA-m884-279h-32v2
7
reference_url https://nvd.nist.gov/vuln/detail/CVE-2020-5274
reference_id
reference_type
scores
0
value 5.5
scoring_system cvssv2
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1
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3
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scoring_elements
url https://nvd.nist.gov/vuln/detail/CVE-2020-5274
8
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reference_id
reference_type
scores
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1
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url https://symfony.com/cve-2020-5274
9
reference_url https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=961415
reference_id 961415
reference_type
scores
url https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=961415
10
reference_url https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:a:sensiolabs:symfony:*:*:*:*:*:*:*:*
reference_id cpe:2.3:a:sensiolabs:symfony:*:*:*:*:*:*:*:*
reference_type
scores
url https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:a:sensiolabs:symfony:*:*:*:*:*:*:*:*
11
reference_url https://github.com/advisories/GHSA-m884-279h-32v2
reference_id GHSA-m884-279h-32v2
reference_type
scores
0
value MODERATE
scoring_system cvssv3.1_qr
scoring_elements
url https://github.com/advisories/GHSA-m884-279h-32v2
fixed_packages
0
url pkg:composer/symfony/error-handler@4.4.4
purl pkg:composer/symfony/error-handler@4.4.4
is_vulnerable false
affected_by_vulnerabilities
resource_url http://public2.vulnerablecode.io/packages/pkg:composer/symfony/error-handler@4.4.4
1
url pkg:composer/symfony/error-handler@5.0.4
purl pkg:composer/symfony/error-handler@5.0.4
is_vulnerable false
affected_by_vulnerabilities
resource_url http://public2.vulnerablecode.io/packages/pkg:composer/symfony/error-handler@5.0.4
aliases CVE-2020-5274, GHSA-m884-279h-32v2
risk_score 3.1
exploitability 0.5
weighted_severity 6.2
resource_url http://public2.vulnerablecode.io/vulnerabilities/VCID-ugce-e42m-1fgj
Fixing_vulnerabilities
Risk_score3.1
Resource_urlhttp://public2.vulnerablecode.io/packages/pkg:composer/symfony/error-handler@4.4.2