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. Note: Researchers have claimed that this issue is not within the product itself, but is intended behavior in a web browser

CVSS v3.1

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

CVSS v3.1

4.2 MEDIUMCVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:N

CVSS v2.0

4.3 MEDIUMAV:N/AC:M/Au:N/C:N/I:P/A:N

EPSS

1.31% chance of exploitation in the next 30 days, 69th percentile

Published

2021-04-12

Updated

2024-08-03

Proof-of-concept exploits (1)

• quilljs/quill/issues/3364

References

• CVE Record
• NVD entry

Related

• CVE-2021-31627
• CVE-2021-31630
• CVE-2021-31624
• CVE-2021-3164
• CVE-2021-31616
• CVE-2021-31641