VulnerabilityModified
CVE-2021-3163
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.
MEDIUM 6.1EPSS 1.31%
Does this matter?
Lower severity and a low EPSS score (1.31%). Track it; it rarely justifies an emergency change on its own.
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
- CVSS 3.1
- 6.1 MEDIUMCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
- EPSS
- 1.31% probability · 69th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-79
- Affected
- slab/quill
- Source
- cve@mitre.org
References
- https://burninatorsec.blogspot.com/2021/04/cve-2021-3163-xss-slab-quill-js.htmlExploit, Third Party Advisory
- https://github.com/quilljs/quill/issues/3273Broken Link, Issue Tracking, Third Party Advisory
- https://github.com/quilljs/quill/issues/3364Exploit, Issue Tracking, Third Party Advisory
- https://quilljs.comProduct
- https://burninatorsec.blogspot.com/2021/04/cve-2021-3163-xss-slab-quill-js.htmlExploit, Third Party Advisory
- https://github.com/quilljs/quill/issues/3273Broken Link, Issue Tracking, Third Party Advisory
- https://github.com/quilljs/quill/issues/3364Exploit, Issue Tracking, Third Party Advisory
- https://quilljs.comProduct
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.