Coder before 2.34.2 Stored HTML Injection via Appearance Settings

MITRE NVD CVE.ORG JSON API

Summary

CVECVE-2026-111932
StatePUBLISHED
AssignerVulnCheck
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-10-17 19:16:36 UTC
Updated2026-10-17 19:16:36 UTC
DescriptionCoder before 2.29.17, 2.30.0 before 2.32.7, 2.33.0 before 2.33.8, and 2.34.0 before 2.34.2 contains a stored HTML injection vulnerability because the ApplicationName and LogoURL appearance settings are rendered into HTML output without sufficient escaping. Attackers with the Owner role can store HTML markup in these settings that renders in the Coder dashboard and in SMTP notification emails sent to other deployment users.

Risk And Classification

Primary CVSS: v4.0 4.8 MEDIUM from [email protected]

CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:P/VC:N/VI:L/VA:N/SC:N/SI:L/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Problem Types: CWE-79 | CWE-79 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

VersionSourceTypeScoreSeverityVector
4.0[email protected]Secondary4.8MEDIUMCVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:P/VC:N/VI:L/VA:N/SC:N/SI:L/SA:N/E:X/C...
4.0CNACVSS4.8MEDIUMCVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:P/VC:N/VI:L/VA:N/SC:N/SI:L/SA:N
3.1[email protected]Primary3.4LOWCVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:N/I:L/A:N
3.1CNACVSS3.4LOWCVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:N/I:L/A:N

CVSS v4.0 Breakdown

Attack Vector
Network
Attack Complexity
Low
Attack Requirements
None
Privileges Required
High
User Interaction
Passive
Confidentiality
None
Integrity
Low
Availability
None
Sub Conf.
None
Sub Integrity
Low
Sub Availability
None

CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:P/VC:N/VI:L/VA:N/SC:N/SI:L/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

CVSS v3.1 Breakdown

Attack Vector
Network
Attack Complexity
Low
Privileges Required
High
User Interaction
Required
Scope
Changed
Confidentiality
None
Integrity
Low
Availability
None

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

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Coder Coder affected 2.34.0 2.34.2 semver Not specified
CNA Coder Coder unaffected 2.34.2 semver Not specified
CNA Coder Coder affected 2.33.0 2.33.8 semver Not specified
CNA Coder Coder unaffected 2.33.8 semver Not specified
CNA Coder Coder affected 2.30.0 2.32.7 semver Not specified
CNA Coder Coder unaffected 2.32.7 semver Not specified
CNA Coder Coder affected 2.29.17 semver Not specified
CNA Coder Coder unaffected 2.29.17 semver Not specified

References

ReferenceSourceLinkTags
www.vulncheck.com/advisories/coder-before-2.34.2-stored-html-injection-via-appe... [email protected] www.vulncheck.com
github.com/coder/coder/security/advisories/GHSA-h58c-xccx-75m3 [email protected] github.com
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

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