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CVE-2023-28102

28
FAUCET Score

CVE-2023-28102 is a critical command injection vulnerability affecting the discordrb Ruby library before commit 91e13043ffa. It arises from unsafe shell string construction in the encoder.rb file, potentially allowing arbitrary command execution on the host system if user-controlled input reaches the vulnerable method. With a CVSS score of 9.6 (CRITICAL), this vulnerability has a network attack vector and low attack complexity, but requires user interaction. A successful exploit could lead to high impact on confidentiality, integrity, and availability, depending on the permissions of the running process. There is currently no evidence of active exploitation, nor are there publicly available exploits in Metasploit or ExploitDB. Community discussion and media coverage are minimal, indicating low public awareness.

Impacted Technologies

VendorProductVersion(s)CPE
< 2023-03-08CPE matchmatch criteria
cpe:2.3:a:discordrb_project:discordrb:*:*:*:*:*:ruby:*:*

CVSS Data

CVSS version used by this source: 3.1

8.3HIGH

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

Attack Vector
NETWORK
Attack Complexity
HIGH
Privileges Required
NONE
User Interaction
REQUIRED
Scope
CHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
1.6
Impact Score
6.0
CvssVersion
3.1

Exploit Intelligence

EPSS Score
2.55%
Probability of exploitation in next 30 days
EPSS Percentile
83.3%
Percentile rank of EPSS score among Peer Group
As of 2026-07-24
Model: v2026.06.15
This CVE's current EPSS score of 0.0255 is in the 87th percentile among its peer group of 834 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.8 Bluesky, 0.5 Mastodon, and 1.2 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.1 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (2)

github_advisorypatch availablevia nvd_reference
View patch
rubygemspatch availablevia ghsa
Product: discordrbFixed in: 3.4.3

Vendor Advisories (1)

rubygemsGHSA-8832-4mm5-x2r6critical

discordrb OS Command Injection vulnerability

Mar 14, 2024

References

github.com / shardlab/discordrb/commit/91e13043ffa89227c3fcdc3408f06da237d28c95
Patch
securitylab.github.com / advisories/GHSL-2022-094_discordrb
ExploitThird Party Advisory