DailyCVE@dailycve
🔴 CKEditor, Cross-Site Scripting, #CVE-2026-116688 (High) -DC-Oct2026-3863 https://dailycve.com/ckeditor-cross-site-scripting-cve-2026-116688-high-dc-oct2026-3863/
0000031
247 followersView on X
CVE-2026-116688
LOWCVSS 8.1 · HIGHSignal is active with 1 mentions in latest observed window
Immediate actions
- Track advisory updates for patch or workaround availability
Recommended action window: Monitor and triage in normal cycle
NVD description
CKEditor 5 is a modern JavaScript rich-text editor with an MVC architecture. From 45.0.0 until 47.7.4 and 48.5.1, the engine uses a vulnerable es-toolkit version whose prototype-pollution behavior can be reached while CKEditor processes incoming style attribute values. Crafted editor content can thereby cause unauthorized JavaScript execution in the browser. This issue is fixed in versions 47.7.4 and 48.5.1.
0.0/ 10 priority
Sources & remediation
Other references
- https://github.com/ckeditor/ckeditor5/commit/4d9c5bb34f63cd956d15ccafbe584e14280c86a0
- https://github.com/ckeditor/ckeditor5/commit/a750e38635db6a18c5b11599c09f4fd702850423
- https://github.com/ckeditor/ckeditor5/releases/tag/v47.7.4
- https://github.com/ckeditor/ckeditor5/releases/tag/v48.5.1
- https://github.com/ckeditor/ckeditor5/security/advisories/GHSA-rh54-vffm-5fvp
Weakness type (CWE)
CWE-79
Priority
LOW
Exploitation
NONE
PoC
NONE
Patch
NONE
Momentum
NONE
Threat summary
- 1 mentions across 1 observed day
What's happening
- 1 total mentions across 1 day