CVE-2024-39926Public exploitNetwork attack vector

Admin dashboard manipulation via unsafe innerHTML assignment

Published Sep 13, 2024 · Updated Mar 18, 2025

Stored HTML injection in the Vaultwarden 1.30.3 admin dashboard allows remote authenticated users to alter its rendered content. The user-role modal inserts attacker-controlled organization names and user email addresses into innerHTML rather than a text-only DOM sink. An administrator must open the affected modal; the default CSP blocks JavaScript, but injected markup can deface the dashboard or redirect the administrator.

CVSS severity5.4
Medium
EPSS probability0.46%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Stored HTML injection in the Vaultwarden 1.30.3 admin dashboard allows remote authenticated users to alter its rendered content. The user-role modal inserts attacker-controlled organization names and user email addresses into innerHTML rather than a text-only DOM sink. An administrator must open the affected modal; the default CSP blocks JavaScript, but injected markup can deface the dashboard or redirect the administrator.

The record

CVE
CVE-2024-39926
Published
Sep 13, 2024
Updated
Mar 18, 2025
Vendor
Dani Garcia
Product
Vaultwarden
Classifications
CWE-79, T1189
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Sep 13, 2024CVE publishedPublication date reported by the CVE source.
  2. Mar 18, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=1.30.3

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Dani Garcia · Vaultwardenversion=1.30.3

Published CVSS scores

5.4NVDCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
T1189Drive-by Compromise

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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