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CVE-2020-5220

15
FAUCET Score

CVE-2020-5220 is a data exposure vulnerability affecting Sylius ResourceBundle versions prior to 1.3.13, 1.4.6, 1.5.1, and 1.6.3. It allows an attacker to pass unintended serialization groups via HTTP headers, potentially exposing sensitive data from APIs. Rated Medium severity (CVSS 5.3), this vulnerability has a low attack complexity and requires no user interaction, but only impacts confidentiality. There is no known impact on integrity or availability. There is currently no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
>= 1.3.0, <= 1.3.12CPE matchmatch criteria
cpe:2.3:a:sylius:syliusresourcebundle:*:*:*:*:*:*:*:*
>= 1.4.0, <= 1.4.5CPE matchmatch criteria
cpe:2.3:a:sylius:syliusresourcebundle:*:*:*:*:*:*:*:*
>= 1.6.0, <= 1.6.2CPE matchmatch criteria
cpe:2.3:a:sylius:syliusresourcebundle:*:*:*:*:*:*:*:*
1.5.0CPE matchmatch criteria
cpe:2.3:a:sylius:syliusresourcebundle:1.5.0:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

4.4MEDIUM

CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:C/C:L/I:L/A:N

Attack Vector
NETWORK
Attack Complexity
HIGH
Privileges Required
LOW
User Interaction
REQUIRED
Scope
CHANGED
Confidentiality Impact
LOW
Integrity Impact
LOW
Availability Impact
NONE
Exploitability Score
1.3
Impact Score
2.7
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.74%
Probability of exploitation in next 30 days
EPSS Percentile
50.7%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0074 is in the 32nd percentile among its peer group of 23,723 CVEs.

Social Chatter

No social media mentions found for this CVE.

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.0 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (6)

composerpatch availablevia ghsa
Product: sylius/resource-bundleFixed in: 1.4.6
composerpatch availablevia ghsa
Product: sylius/resource-bundleFixed in: 1.5.1
composerpatch availablevia ghsa
Product: sylius/resource-bundleFixed in: 1.6.3
composerpatch availablevia ghsa
Product: sylius/syliusFixed in: 1.3.12
composerpatch availablevia ghsa
Product: sylius/syliusFixed in: 1.4.4
composerpatch availablevia ghsa
Product: sylius/resource-bundleFixed in: 1.3.13

Vendor Advisories (1)

composerGHSA-8vp7-j5cj-vvm2medium

Ability to expose data in Sylius by using an unintended serialisation group

Jan 31, 2020

References

github.com / FriendsOfPHP/security-advisories/blob/master/sylius/resource-bundle/CVE-2020-5220.yaml
Third Party Advisory
github.com / Sylius/SyliusResourceBundle/security/advisories/GHSA-8vp7-j5cj-vvm2
Third Party Advisory