Cross-Site Scripting in cyberchef
Versions of cyberchef prior to 8.31.3 are vulnerable to Cross-Site Scripting. In Text Encoding Brute Force the table rows are created by concatenating the value variable unsanitized in the HTML code. If this variable is controlled by user input it allows attackers to execute arbitrary JavaScript in a victim's browser.
Recommendation
Upgrade to version 8.31.3 or later.
Affected software
Click a technology to see all vulnerabilities affecting it.
| Platform | Package | Vulnerable versions | Fixed in |
|---|---|---|---|
| npm package | cyberchef | < 8.31.3 | 8.31.3 |
References
- https://nvd.nist.gov/vuln/detail/CVE-2019-15532
- https://github.com/gchq/CyberChef/issues/539
- https://github.com/gchq/CyberChef/issues/544
- https://github.com/gchq/CyberChef/commit/01f0625d6a177f9c5df9281f12a27c814c2d8bcf
- https://github.com/gchq/CyberChef/compare/v8.31.1...v8.31.2
- https://snyk.io/vuln/SNYK-JS-CYBERCHEF-460296
- https://www.npmjs.com/advisories/1149
- CVSS vector
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N- Weakness (CWE)
CWE-79- Platform
- npm
- Package
cyberchef- Disclosed
- 27.08.2019
- Updated
- 11.10.2026 10:22
Sources and licenses
OSV / GitHub Advisory Database - GHSA-jp6r-xcjj-5h7r - CC BY 4.0
Vulnerability history: cyberchef
All published vulnerabilities of this package (npm package), newest first. Shows whether this is a one-off slip or a package that needs watching.
- Total entries
- 3
- First → latest
- 08.2019 09.2026
- Without a fix
- 0
- Exploited in attacks
- 0
Severity breakdown
- High 1
- Medium 2
Disclosures per year
- 2019: 1
- 2020: 0
- 2021: 0
- 2022: 0
- 2023: 0
- 2024: 0
- 2025: 0
- 2026: 2
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Cross-Site Scripting in cyberchef this entry
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