What’s Vulnerable › Vulnerabilities

CVE-2024-47879: OpenRefine's PreviewExpressionCommand, which is eval, lacks protection against cross-site request forgery (CSRF)

• Severity: high (CVSS 8.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.4% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2024-10-24 · updated 2026-06-17
• Weakness: CWE-94

Description

OpenRefine is a free, open source tool for working with messy data. Prior to version 3.8.3, lack of cross-site request forgery protection on the `preview-expression` command means that visiting a malicious website could cause an attacker-controlled expression to be executed. The expression can contain arbitrary Clojure or Python code. The attacker must know a valid project ID of a project that contains at least one row, and the attacker must convince the victim to open a malicious webpage. Version 3.8.3 fixes the issue.

Affected products

• OpenRefine: before 3.8.3 — fixed in 3.8.3

How to fix

Upgrade to a fixed version: OpenRefine 3.8.3. Check the vendor advisory for mitigations.

References

• https://github.com/OpenRefine/OpenRefine/commit/090924ca923489b6c94397cf1f5df7f7f78f0126
• https://github.com/OpenRefine/OpenRefine/security/advisories/GHSA-3jm4-c6qf-jrh3

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