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Vulnerability record · CVE-2020-14161 · published 26 August 2021

CVE-2020-14161: Thecodingmachine gotenberg cross-site scripting vulnerability

Thecodingmachine · Gotenberg

It is possible to inject HTML and/or JavaScript in the HTML to PDF conversion in Gotenberg through 6.2.1 via the /convert/html endpoint.

6.1 CVSS 3.1 Medium EPSS 0.90% · top 41.9% CWE-79 · Cross-site scripting
6.1CVSS 3.1 base score, v2 4.3
0.90%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
6References
17 Jun 2026Last modified by NVD

Description

It is possible to inject HTML and/or JavaScript in the HTML to PDF conversion in Gotenberg through 6.2.1 via the /convert/html endpoint.

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://github.com/gotenberg/gotenberg/issues/215 Issue TrackingPatchThird Party Advisory
https://github.com/gotenberg/gotenberg/pull/319 PatchThird Party Advisory
https://github.com/thecodingmachine/gotenberg/releases Release NotesThird Party Advisory
https://github.com/gotenberg/gotenberg/issues/215 Issue TrackingPatchThird Party Advisory
https://github.com/gotenberg/gotenberg/pull/319 PatchThird Party Advisory
https://github.com/thecodingmachine/gotenberg/releases Release NotesThird Party Advisory

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

9.8CVE-2026-42589Thecodingmachine gotenberg os command injection vulnerabilityGotenberg is a Docker-powered stateless API for PDF files. Prior to 8.31.0, Gotenberg's /forms/pdfengines/metadata/write HTTP endpoint accepts a JSON…EPSS 3.7%9.8CVE-2020-13452Thecodingmachine gotenberg incorrect default permissions vulnerabilityIn Gotenberg through 6.2.1, insecure permissions for tini (writable by user gotenberg) potentially allow an attacker to overwrite the file, which can…EPSS 2.7%9.8CVE-2020-13450Thecodingmachine gotenberg path traversal vulnerabilityA directory traversal vulnerability in file upload function of Gotenberg through 6.2.1 allows an attacker to upload and overwrite any writable files …EPSS 5.6%9.8CVE-2020-13451Thecodingmachine gotenberg vulnerabilityAn incomplete-cleanup vulnerability in the Office rendering engine of Gotenberg through 6.2.1 allows an attacker to overwrite LibreOffice configurati…EPSS 3.0%9.4CVE-2026-42596Thecodingmachine gotenberg server-side request forgery (ssrf) vulnerabilityGotenberg is a Docker-powered stateless API for PDF files. Prior to 8.31.0, the default deny-lists used by Gotenberg's downloadFrom feature and webho…EPSS 1.8%9.1CVE-2026-40281Thecodingmachine gotenberg argument injection vulnerabilityGotenberg is a Docker-powered stateless API for PDF files. In versions 8.30.1 and earlier, the metadata write endpoint validates metadata keys for co…EPSS 0.66%8.7CVE-2026-35458Thecodingmachine gotenberg inefficient regular expression (redos) vulnerabilityGotenberg is an API for converting document formats. In 8.29.1 and earlier, Gotenberg uses dlclark/regexp2 to compile user-supplied scope patterns wi…EPSS 0.61%8.6CVE-2026-42595Thecodingmachine gotenberg server-side request forgery (ssrf) vulnerabilityGotenberg is a Docker-powered stateless API for PDF files. Prior to 8.32.0, Gotenberg's Chromium URL-to-PDF endpoint (/forms/chromium/convert/url) ha…EPSS 0.42%

Source: NIST National Vulnerability Database (record CVE-2020-14161), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.