CVE-2020-28481: socket socket.io Origin Validation Error
CVSS: 5.3v3.1MediumModified
AliasesGHSA-fxwf-4rqh-v8g3
Published 19-01-2021Last modified 16-09-2024
Vulnerability summary
CVE-2020-28481 is a medium (CVSS 5.3) Origin Validation Error vulnerability in socket socket.io. EPSS estimates a 0.74% chance of exploitation in the next 30 days, higher than 53.7% of scored vulnerabilities. 1 public exploit is recorded.
CVSS score
5.3/10
010
Medium · v3.1 (CVE.org)EPSS score
0.74%
0%100%
Low · +0.01 pp in 30 daysKEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits1github
Timeline
- 19-01-2021PublishedVulnerability first disclosed.
- 16-09-2024Last modifiedVulnerability information updated.
Description
The package socket.io before 2.4.0 are vulnerable to Insecure Defaults due to CORS Misconfiguration. All domains are whitelisted by default.
CVSS metrics
4 scores · 3 sources · 2 versionsMedium 5.3Preferred score · CVE.org (CNA)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N/E:P/RL:O/RC:CSources3 sources · 4.3–5.3
- OSV · NpmEcosystem advisory · calculated4.3MediumCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:NDiffers
- NVDNIST4.3MediumCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:NDiffers
Medium 4.0Preferred score · NVD (NIST)
AV:N/AC:L/Au:S/C:P/I:N/A:NSourcesSingle source
EPSS trend
Probability
0.74%
Chance of exploitation in the next 30 days
Percentile
54%
Versus all other CVEs
30-day change
+0.01 pp
From 0.73% on 19-09-2026
19-09-202619-10-2026
EPSS score0.74%
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
1 foundSocket.Io
Maturity: poc
Weaknesses
CWE · root causeAffected systems
Npm1 product
- socket.io< 2.4.0
Socket1 product
- socket.io< 2.4.0
2 vendors · 2 products
