CVE-2024-47878Public exploitNetwork attack vector

Browser script execution via unescaped OAuth state

Published Oct 24, 2024 · Updated Oct 28, 2024

Reflected XSS in OpenRefine before 3.8.3 allows remote attackers to execute JavaScript in a user's browser through a crafted URL. The GData authorized.vt template places the state GET parameter verbatim inside a script block without format validation or escaping. Exploitation requires the GData extension and a victim to follow or be redirected to the URL; no Google client credentials are required, and the script acts with the user's OpenRefine permissions.

CVSS severity8.1
High
EPSS probability0.44%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Reflected XSS in OpenRefine before 3.8.3 allows remote attackers to execute JavaScript in a user's browser through a crafted URL. The GData authorized.vt template places the state GET parameter verbatim inside a script block without format validation or escaping. Exploitation requires the GData extension and a victim to follow or be redirected to the URL; no Google client credentials are required, and the script acts with the user's OpenRefine permissions.

The record

CVE
CVE-2024-47878
Published
Oct 24, 2024
Updated
Oct 28, 2024
Vendor
OpenRefine
Product
OpenRefine
Classifications
CWE-79, T1189
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Oct 24, 2024CVE publishedPublication date reported by the CVE source.
  2. Oct 28, 2024Record 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=0 <3.8.3
  2. Affected versionversion=< 3.8.3

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

OpenRefine · OpenRefineversion=0 <3.8.3; version=< 3.8.3

Published CVSS scores

8.1GitHubCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/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 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
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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