CVE-2021-3163

MediumCVSS 6.1/10Last modified Jun 17, 2026

Description

A vulnerability in the HTML editor of Slab Quill 4.8.0 allows an attacker to execute arbitrary JavaScript by storing an XSS payload (a crafted onloadstart attribute of an IMG element) in a text field. Note: Researchers have claimed that this issue is not within the product itself, but is intended behavior in a web browser

Metrics

CVSS 3.1 6.1/10CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Weakness enumeration

Affected software

No affected versions have been published.

Timeline

Published
Apr 12, 2021
Last modified
Jun 17, 2026
NVD status
Modified

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CVE-2021-3163: Medium severity, CVSS 6.1 | Vulnix