Vulnerability DatabaseCVE-2025-15056
Mend.io Vulnerability Database
The largest open source vulnerability database
What is a Vulnerability ID?
New vulnerability? Tell us about it!
CVE-2025-15056
Published:January 13, 2026
Updated:August 06, 2026
A lack of data validation vulnerability in the HTML export feature in Quill allows Cross-Site Scripting (XSS) via unescaped formula and video embeds in the getSemanticHTML() / getHTML() output. This issue affects Quill 2.0.0 through 2.0.3. No fixed version has been released (fix pending in unmerged PR slab/quill#4774).
Additional Notes
The description of this vulnerability differs from MITRE.
Related Resources (5)
https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/15xxx/CVE-2025-15056.json
https://github.com/slab/quill
https://nvd.nist.gov/vuln/detail/CVE-2025-15056
https://registry.npmjs.org
https://fluidattacks.com/advisories/diomedes
Do you need more information?
Contact Us
CVSS v4
Base Score:
5.1
Attack Vector
NETWORK
Attack Complexity
LOW
Attack Requirements
NONE
Privileges Required
NONE
User Interaction
ACTIVE
Vulnerable System Confidentiality
NONE
Vulnerable System Integrity
NONE
Vulnerable System Availability
NONE
Subsequent System Confidentiality
NONE
Subsequent System Integrity
LOW
Subsequent System Availability
NONE
Exploit Maturity
POC
CVSS v3
Base Score:
4.7
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
CHANGED
Confidentiality
NONE
Integrity
LOW
Availability
NONE
Weakness Type (CWE)
Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection')
CWE-74
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
CWE-79
EPSS
Base Score:
0.22