VDB-152440 · CVE-2020-5274 · GCVE-0-2020-5274

Symfony up to 4.4.4/5.0.4 Exception information exposure

CVSS Meta Temp Score CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.	Current Exploit Price (≈) Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.	CTI Interest Score Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
4.5	$0-$5k	0.00

Summaryinfo

A vulnerability categorized as problematic has been discovered in Symfony up to 4.4.4/5.0.4. This affects an unknown part of the component Exception Handler. Executing a manipulation can lead to information exposure. This vulnerability is registered as CVE-2020-5274. It is possible to launch the attack remotely. No exploit is available. It is advisable to upgrade the affected component.

Detailsinfo

A vulnerability was found in Symfony up to 4.4.4/5.0.4. It has been declared as problematic. This vulnerability affects an unknown functionality of the component Exception Handler. The manipulation with an unknown input leads to a information exposure vulnerability. The CWE definition for the vulnerability is CWE-209. The product generates an error message that includes sensitive information about its environment, users, or associated data. As an impact it is known to affect confidentiality, and integrity. CVE summarizes:

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

The weakness was published 03/30/2020 (GitHub Repository). The advisory is shared for download at github.com. This vulnerability was named CVE-2020-5274 since 01/02/2020. The attack can be initiated remotely. The successful exploitation needs a single authentication. Successful exploitation requires user interaction by the victim. There are neither technical details nor an exploit publicly available. The MITRE ATT&CK project declares the attack technique as T1592.

Upgrading to version 4.4.5 or 5.0.5 eliminates this vulnerability.

Similar entry is available at VDB-152439. VulDB is the best source for vulnerability data and more expert information about this specific topic.

Productinfo

Name

Symfony

Version

License

open-source

Website

Product: https://github.com/symfony/symfony/

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 4.6
VulDB Meta Temp Score: 4.5

VulDB Base Score: 4.6
VulDB Temp Score: 4.4
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 4.6
NVD Vector: 🔍

CNA Base Score: 4.6
CNA Vector (GitHub, Inc.): 🔍

CVSSv2info

AV	AC	Au	C	I	A
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Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Information exposure
CWE: CWE-209 / CWE-200 / CWE-284
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-Day	Unlock	Unlock	Unlock	Unlock
Today	Unlock	Unlock	Unlock	Unlock

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: Symfony 4.4.5/5.0.5
Patch: github.com

Timelineinfo

01/02/2020 🔍
03/30/2020 +88 days 🔍
03/31/2020 +1 days 🔍
05/10/2025 +1866 days 🔍

Sourcesinfo

Product: github.com

Advisory: 629d21b800a15dc649fb0ae9ed7cd9211e7e45db
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2020-5274 (🔍)
GCVE (CVE): GCVE-0-2020-5274
GCVE (VulDB): GCVE-100-152440
See also: 🔍

Entryinfo

Created: 03/31/2020 10:35
Updated: 05/10/2025 02:07
Changes: 03/31/2020 10:35 (39), 03/31/2020 10:40 (11), 10/05/2020 10:17 (1), 05/12/2024 12:15 (18), 05/12/2024 12:23 (18), 05/10/2025 02:07 (7)
Complete: 🔍
Cache ID: 216::103

VulDB is the best source for vulnerability data and more expert information about this specific topic.