CVE-2021-3271
Medium
Description
PressBooks 5.17.3 contains a cross-site scripting (XSS). Stored XSS can be submitted via the Book Info's Long Description Body, and all actions to open or preview the books page will result in the triggering the stored XSS.
SeverityMedium
CVSS4.8
Exploit probability—
ProductPressbooks
PublishedFeb 18, 2021
First seenFeb 18, 2021
How to fix
Update
- pressbooks/pressbooks5.18.0 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| pressbooks pressbooks | v ≤ 5.17.3 | — |
| pressbooks/pressbooksPackagist | v < 5.18.0 | 5.18.0 |
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