CVE-2021-42770

    Dashboard / Vulnerabilities / CVE-2021-42770

    CVE-2021-42770

    Published: 8 Nov 2021Last Modified: 7 Aug 2026

    Summary:

    Details: A Cross-site scripting (XSS) vulnerability was discovered in OPNsense before 21.7.4 via the LDAP attribute return in the authentication tester.

    References: https://cert.orange.com, https://opnsense.org/opnsense-21-7-4-released/, https://github.com/orangecertcc/security-research/security/advisories/GHSA-r32j-xgg3-w2rw

    Affected packages

    Package

    Name:

    Purl:

    Affected ranges

    Type: GIT

    Events:

    Introduced- 0
    Fixed -96214877bef00c196903a9ec8b4e1afac75b7a18

    Affected versions

    21.7.3
    21.7.2
    21.7.1
    21.7
    21.7.r2
    21.7.r1
    21.7.r
    21.7.b
    21.7.a

    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-2021-42770 | CVE-DB