CVE-2020-17480

Name: CVE-2020-17480
Creator: NVD / NIST
Published: 2020-08-10T20:15:11.737+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 6.1/10EPSS 1.25%

Last modified Jun 17, 2026

CVE-2020-17480 is a medium-severity vulnerability rated 6.1/10 on the CVSS scale. TinyMCE before 4.9.7 and 5.x before 5.1.4 allows XSS in the core parser, the paste plugin, and the visualchars plugin by using the clipboard or APIs to insert content into the editor.. EPSS estimates a 1.25% chance of exploitation in the next 30 days.

Description

TinyMCE before 4.9.7 and 5.x before 5.1.4 allows XSS in the core parser, the paste plugin, and the visualchars plugin by using the clipboard or APIs to insert content into the editor.

Metrics

CVSS 3.1

6.1/10

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

EPSS Probability

1.25%

65.6th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-79

Affected Software

Vendor	Product	Versions
Tiny	Tinymce	< 4.9.7
Tiny	Tinymce	>= 5.0.0, < 5.1.4

References

https://github.com/tinymce/tinymce/security/advisories/GHSA-27gm-ghr9-4v95Exploit, Release Notes, Third Party Advisory
https://www.tiny.cloud/docs/release-notes/release-notes514/#securityfixesRelease Notes, Vendor Advisory
https://github.com/tinymce/tinymce/security/advisories/GHSA-27gm-ghr9-4v95Exploit, Release Notes, Third Party Advisory
https://www.tiny.cloud/docs/release-notes/release-notes514/#securityfixesRelease Notes, Vendor Advisory

Timeline

Published: Aug 10, 2020
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2020-17480?

TinyMCE before 4.9.7 and 5.x before 5.1.4 allows XSS in the core parser, the paste plugin, and the visualchars plugin by using the clipboard or APIs to insert content into the editor.

How severe is CVE-2020-17480?

CVE-2020-17480 has a CVSS score of 6.1/10 (MEDIUM severity). The EPSS model estimates a 1.25% probability of exploitation in the next 30 days.

How do I fix CVE-2020-17480?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2020-17480?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST