Medium severity6.1NVD Advisory· Published Jan 13, 2026· Updated Apr 20, 2026

CVE-2025-15056

Description

A lack of data validation vulnerability in the HTML export feature in Quill in allows Cross-Site Scripting (XSS).

This issue affects Quill: 2.0.3.

AI Insight

LLM-synthesized narrative grounded in this CVE's description and references.

Affected products

Slab/Quill
cpe:2.3:a:slab:quill:2.0.3:*:*:*:*:node.js:*:*
ghsa-coords
pkg:npm/quill

Patches

Vulnerability mechanics

References

fluidattacks.com/advisories/diomedesnvdExploitThird Party AdvisoryWEB
github.com/advisories/GHSA-v3m3-f69x-jf25ghsaADVISORY
nvd.nist.gov/vuln/detail/CVE-2025-15056ghsaADVISORY

News mentions

No linked articles in our index yet.

Severity

MediumCVSS v3.1

6.1/ 10

CVSS v45.1

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:N/SC:N/SI:L/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

Attack vector: Network
Complexity: Low
Privileges: None
User interaction: Required
Scope: Changed
Confidentiality: Low
Integrity: Low
Availability: None

Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Affected

Source repo: github.com/slab/quill

EPSS

Probability of exploitation in the next 30 days.

0.22%

VYPR risk score

Composite of severity, exploitation, and reach.

0.40medium

cvss	0.397
epss	0.000
exploit	0.000
kev	0.000
patch	0.000
ransomware	0.000

Weaknesses

CWE-74
Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection')
CWE-79
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

CVE ID

CVE-2025-15056