GHSA-wmfg-55f9-j8hq

    Dashboard / Vulnerabilities / GHSA-wmfg-55f9-j8hq

    GHSA-wmfg-55f9-j8hq

    Published: 24 Dec 2020Last Modified: 10 Sept 2026

    Summary: Server-Side Template Injection

    Details: ### Impact A Server-Side Template Injection was identified in BrowserUp Proxy enabling attackers to inject arbitrary Java EL expressions, leading to unauthenticated Remote Code Execution (RCE) vulnerability. This has been assigned CVE-2020-26282. ### Patches Effective Immediately, all users should upgrade to version 2.1.2 or higher. ### Workarounds None. ### References https://securitylab.github.com/research/bean-validation-RCE ### For more information If you have any questions or comments about this advisory: * Open an issue in [the BrowserUp Proxy repo](http://github.com/browserup/browserup-proxy) * Contact us via the [BrowserUp website](https://browserup.com) or email us at [[email protected]](mailto:[email protected])

    References: https://github.com/browserup/browserup-proxy/security/advisories/GHSA-wmfg-55f9-j8hq, https://nvd.nist.gov/vuln/detail/CVE-2020-26282, https://github.com/browserup/browserup-proxy/commit/4b38e7a3e20917e5c3329d0d4e9590bed9d578ab, https://github.com/browserup/browserup-proxy/releases/tag/v2.1.2, https://securitylab.github.com/research/bean-validation-RCE

    Affected packages

    Package

    Name: com.browserup:browserup-proxy

    Purl: pkg:maven/com.browserup/browserup-proxy

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0
    Fixed -2.1.2

    Affected versions

    1.1.0

    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
    GHSA-wmfg-55f9-j8hq | CVE-DB