CVE-2021-3271

    Dashboard / Vulnerabilities / CVE-2021-3271

    CVE-2021-3271

    Published: 18 Feb 2021Last Modified: 9 Jul 2026

    Summary:

    Details: 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.

    References: https://github.com/pressbooks/pressbooks, https://github.com/pressbooks/pressbooks/pull/2072, https://www.gosecure.net/blog/2021/02/16/cve-2021-3271-pressbooks-stored-cross-site-scripting-proof-of-concept/

    Affected packages

    Package

    Name:

    Purl:

    Affected ranges

    Type: GIT

    Events:

    Introduced- 0
    Fixed -None

    Affected versions

    5.17.3
    5.17.2
    5.17.1
    5.17.0

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High
    CVE-2021-3271 | CVE-DB