CVE-2026-116675

EUVD-2026-111106
TinyMCE is an open source rich text editor. From 7.9.3 until 7.9.4 and from 8.5.1 until 8.9.3, the media plugin creates elements crafted through data-mce-object in the active document before sanitization. Those elements can execute malicious scripts during processing, resulting in stored cross-site scripting for users with the media plugin enabled. This issue is fixed in versions 8.9.3 and 7.9.4.
Cross-site Scripting
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
GitHub_MCNA
8.5 HIGH
NETWORK
LOW
LOW
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Base Score
CVSS 3.x
EPSS Score
Percentile: Unknown
Early Detection
Affected products identified ahead of NVD analysis through intelligence sources (CNA/ADP records, vendor advisories, Enginsight analysis).
VendorProductVersionSource
tinymcetinymce
8.5.1 ≤
𝑥
< 8.9.3
CNA
tinymcetinymce
7.9.3 ≤
𝑥
< 7.9.4
CNA
Common Weakness Enumeration
References
https://github.com/tinymce/tinymce/commit/bd1ab5ef024c648c3f9c0b409e54a6c227c7d8a2
https://github.com/tinymce/tinymce/releases/tag/8.9.3
https://github.com/tinymce/tinymce/security/advisories/GHSA-mf2p-h6hf-fcwm
https://www.tiny.cloud/docs/tinymce/7/7.9.4-release-notes/#overview
https://www.tiny.cloud/docs/tinymce/latest/8.9.3-release-notes/#overview