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🛡️ CVE-2024-47878 — openrefine

🟠 CVSS 8.1 — High ⚠️ Exploit Public CWE-79 NVD
8.1
CVSS Score
0 Low4 Medium7 High9 Critical10

Description

OpenRefine has a reflected cross-site scripting vulnerability (XSS) in GData extension (authorized.vt)

Summary

The /extension/gdata/authorized endpoint includes the state GET parameter verbatim in a <script> tag in the output, so without escaping.

An attacker could lead or redirect a user to a crafted URL containing JavaScript code, which would then cause that code to be executed in the victim's browser as if it was part of OpenRefine.

Details

The state GET parameter is read from:

  • extensions/gdata/module/MOD-INF/controller.js:105

It is used (as $state) in:

  • extensions/gdata/module/authorized.vt:43

There is no check that the state has the expected format (base64-encoded JSON with values like "openrefine123..." and "cb123..."), or that the page was indeed opened as part of the authorization flow.

PoC

Navigate to:

http://localhost:3333/extension/gdata/authorized?state=%22,alert(1),%22&error=

An alert box pops up.

The gdata extension needs to be present. No other configuration is needed; specifically, it is not required to have a client ID or client secret set.

Impact

Execution of arbitrary JavaScript in the user's browser. The attacker-provided code can do anything the user can do, including deleting projects, retrieving database passwords, or executing arbitrary Jython or Closure expressions, if those extensions are also present.

How this vulnerability can be exploited

This issue can be reached over the network, attack complexity is low, an attacker needs no privileges on the target. A user must be tricked into taking some action. The scope is unchanged, so the impact stays within the vulnerable component. Rated impact: confidentiality high, integrity high, availability none.

CVSS metrics in full

The score comes from this vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N

  • Attack vector: Network — reachable from anywhere that can route to the service.
  • Attack complexity: Low — the attack works reliably, with no preparation.
  • Privileges required: None — an unauthenticated stranger can try it.
  • User interaction: Required — someone has to click, open or visit something.
  • Scope: Unchanged — the damage stays inside the vulnerable component.
  • Confidentiality impact: High — total loss, or loss the attacker controls.
  • Integrity impact: High — total loss, or loss the attacker controls.
  • Availability impact: None.

Weakness class

CVE-2024-47878 is classified as CWE-79: Cross-site Scripting (XSS). User-supplied data is written into a page without escaping, so attacker script runs in the browser of anyone who views it.

Affected software

CVE-2024-47878 is recorded against 2 packages.

  • openrefine (fixed in 3.8.3)
  • org.openrefine:extensions (fixed in 3.8.3)

Timeline and source

Published on 24 October 2024 and last revised on 17 June 2026. A public exploit is known to exist, which raises the urgency of patching considerably. A vendor advisory or fix has been published. Record sourced from NVD.

References

github.com
github.com

Other advisories for this package

openrefine has other advisories on record. If you are patching this one, these are worth checking on the same host:

Same weakness in other software

These advisories are the same class of weakness (CWE-79: Cross-site Scripting (XSS)) in other software:

CVE-2024-47878 on other distributions

Each distribution ships its own build and its own fixed version. Pick the one you run:

Details

Severity HIGH
CVSS Score 8.1
CVSS Vector CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N
CWE CWE-79
Public Exploit ⚠️ Yes
Source NVD
Published 2024-10-24
Updated 2026-08-20
Modified 2026-06-17

Affected Packages

Software From version Fixed in
openrefine — 3.8.3
org.openrefine:extensions — 3.8.3

Exploit Protection

Are you running openrefine?

CVE-2024-47878 carries CVSS 8.1 High rating and a public exploit already exists. BotEraser checks your installation against this and other known CVE records, and blocks IPs associated with exploit activity.

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