6.1

CVE-2024-21910: tiny tinymce Cross-site Scripting

CVSS: 6.1v3.1MediumModified
AliasesGHSA-r8hm-w5f7-wj39PYSEC-2026-632UBUNTU-CVE-2024-21910
Published 03-01-2024Last modified 14-07-2026
Open JSON

Vulnerability summary

CVE-2024-21910 is a medium (CVSS 6.1) Cross-site Scripting vulnerability in tiny tinymce. EPSS estimates a 0.96% chance of exploitation in the next 30 days, higher than 60.8% of scored vulnerabilities. 1 public exploit is recorded.

Overall risk
35/100
0100
Medium · default modelHow is this calculated?
CVSS score
6.1/10
010
Medium · v3.1 (CVE.org)
EPSS score
0.96%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits1github

Timeline

  1. 03-01-2024
    PublishedVulnerability first disclosed.
  2. 14-07-2026
    Last modifiedVulnerability information updated.

Description

TinyMCE versions before 5.10.0 are affected by a cross-site scripting vulnerability. A remote and unauthenticated attacker could introduce crafted image or link URLs that would result in the execution of arbitrary JavaScript in an editing user's browser.

CVSS metrics

6 scores · 6 sources · 1 version

EPSS trend

Probability

0.96%

Chance of exploitation in the next 30 days

Percentile

61%

Versus all other CVEs

30-day change

0.00 pp

From 0.96% on 20-09-2026

20-09-202620-10-2026
EPSS score
0.96%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

1 found
  • githubUnverified

    Ghsa R8Hm W5F7 Wj39

    Maturity: poc

Weaknesses

CWE · root cause

Affected systems

Npm1 product
  • tinymce< 5.10.0
NuGet1 product
  • TinyMCE< 5.10.0
PyPI1 product
  • django-tinymce< 3.4.0
Tiny1 product
Tinymce1 product
  • tinymce< 5.10.0
Ubuntu1 product
  • tinymceAll versions (No fix recorded)

6 vendors · 6 products

References

12 links
Show all 12 references