In short
- CVE-2021-3163 is a MEDIUM (CVSS 6.1) vulnerability affecting quill (slab), quill.
- Chance of exploitation in the next 30 days (EPSS): 1.3%, higher than 70.8% of all vulnerabilities.
- No patched version is listed yet: follow the vendor's advisory in References.
| Package | Affected versions | Patched versions |
|---|
| quill | = 4.8.0
| No fix yet |
| quill npm | ≤ 1.3.7
| No fix yet |
Description
A vulnerability in the HTML editor of Slab Quill allows an attacker to execute arbitrary JavaScript by storing an XSS payload (a crafted onloadstart attribute of an IMG element) in a text field. No patch exists and no further releases are planned.
This CVE is disputed. Researchers have claimed that this issue is not within the product itself, but is intended behavior in a web browser. More information can be found here.
NVD 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
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