CVE-2020-12648

Name: CVE-2020-12648
Creator: NVD / NIST
Published: 2020-08-14T14:15:12.41+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 6.1/10EPSS 1.81%

Last modified Jun 17, 2026

CVE-2020-12648 is a medium-severity vulnerability rated 6.1/10 on the CVSS scale. A cross-site scripting (XSS) vulnerability in TinyMCE 5.2.1 and earlier allows remote attackers to inject arbitrary web script when configured in classic editing mode.. EPSS estimates a 1.81% chance of exploitation in the next 30 days.

Description

A cross-site scripting (XSS) vulnerability in TinyMCE 5.2.1 and earlier allows remote attackers to inject arbitrary web script when configured in classic editing mode.

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

1.81%

75.9th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-79

Affected Software

Vendor	Product	Versions
Tiny	Tinymce	< 4.9.11
Tiny	Tinymce	>= 5.0.0, < 5.4.1

References

https://labs.bishopfox.com/advisories/tinymce-version-5.2.1Third Party Advisory
https://labs.bishopfox.com/advisories/tinymce-version-5.2.1Third Party Advisory

Timeline

Published: Aug 14, 2020
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2020-12648?

A cross-site scripting (XSS) vulnerability in TinyMCE 5.2.1 and earlier allows remote attackers to inject arbitrary web script when configured in classic editing mode.

How severe is CVE-2020-12648?

CVE-2020-12648 has a CVSS score of 6.1/10 (MEDIUM severity). The EPSS model estimates a 1.81% probability of exploitation in the next 30 days.

How do I fix CVE-2020-12648?

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-2020-12648?

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

Scan your code now

Source: NVD / NIST