CVE-2025-30210Public exploit

Code execution via raw HTML environment tooltip

Published Apr 1, 2025 · Updated Apr 2, 2025

Cross-site scripting in Bruno 1.38.0 through 1.39.0 allows context-dependent attackers to execute code via a malicious collection. Environment tooltip components pass an imported environment name to react-tooltip as raw HTML, injecting inline script into the DOM on hover. Execution requires a user to download and open an untrusted Bruno or Postman collection and hover over its environment name; the script can read or write local files and reach renderer IPC functions.

CVSS severity8.7
High
EPSS probability0.35%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Cross-site scripting in Bruno 1.38.0 through 1.39.0 allows context-dependent attackers to execute code via a malicious collection. Environment tooltip components pass an imported environment name to react-tooltip as raw HTML, injecting inline script into the DOM on hover. Execution requires a user to download and open an untrusted Bruno or Postman collection and hover over its environment name; the script can read or write local files and reach renderer IPC functions.

The record

CVE
CVE-2025-30210
Published
Apr 1, 2025
Updated
Apr 2, 2025
Vendor
Bruno
Product
Bruno
Classifications
CWE-80, T1204.002
Attack vector
local
Privileges
unauthenticated

Timeline

How it unfolded

  1. Apr 1, 2025CVE publishedPublication date reported by the CVE source.
  2. Apr 2, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

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

  1. Affected versionversion=>= 1.38.0, < 1.39.1

What conditions does exploitation require?

Attack vectorlocal
Required privilegesunauthenticated

What is affected?

Bruno · Brunoversion=>= 1.38.0, < 1.39.1

Published CVSS scores

8.7GitHub, Inc.CVSS:4.0/AV:L/AC:L/AT:P/PR:N/UI:A/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H
6.1NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/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.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-80Improper Neutralization of Script-Related HTML Tags in a Web Page (Basic XSS)
T1204.002Malicious File

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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