CVE-2020-5256

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Summary

CVECVE-2020-5256
StatePUBLIC
Assigner[email protected]
Source PriorityCVE Program / NVD first with legacy fallback
Published2020-03-09 16:15:00 UTC
Updated2020-03-10 13:34:00 UTC
DescriptionBookStack before version 0.25.5 has a vulnerability where a user could upload PHP files through image upload functions, which would allow them to execute code on the host system remotely. They would then have the permissions of the PHP process. This most impacts scenarios where non-trusted users are given permission to upload images in any area of the application. The issue was addressed in a series of patches in versions 0.25.3, 0.25.4 and 0.25.5. Users should upgrade to at least v0.25.5 to avoid this vulnerability.

Risk And Classification

Problem Types: CWE-434

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Application Bookstackapp Bookstack All All All All
Application Bookstackapp Bookstack All All All All

References

ReferenceSourceLinkTags
Release BookStack Beta v0.25.5 · BookStackApp/BookStack · GitHub MISC github.com Release Notes
Remote Code Execution Through Image Uploads · Advisory · BookStackApp/BookStack · GitHub CONFIRM github.com Third Party Advisory
Release BookStack Beta v0.25.4 · BookStackApp/BookStack · GitHub MISC github.com Release Notes
Release BookStack Beta v0.25.3 · BookStackApp/BookStack · GitHub MISC github.com Release Notes
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis
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