CVE-2020-26255

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Summary

CVECVE-2020-26255
StatePUBLIC
Assigner[email protected]
Source PriorityCVE Program / NVD first with legacy fallback
Published2020-12-08 15:15:00 UTC
Updated2020-12-10 14:35:00 UTC
DescriptionKirby is a CMS. In Kirby CMS (getkirby/cms) before version 3.4.5, and Kirby Panel before version 2.5.14 , an editor with full access to the Kirby Panel can upload a PHP .phar file and execute it on the server. This vulnerability is critical if you might have potential attackers in your group of authenticated Panel users, as they can gain access to the server with such a Phar file. Visitors without Panel access *cannot* use this attack vector. The problem has been patched in Kirby 2.5.14 and Kirby 3.4.5. Please update to one of these or a later version to fix the vulnerability. Note: Kirby 2 reaches end of life on December 31, 2020. We therefore recommend to upgrade your Kirby 2 sites to Kirby 3. If you cannot upgrade, we still recommend to update to Kirby 2.5.14.

Risk And Classification

Problem Types: CWE-434

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Application Getkirby Kirby All All All All
Application Getkirby Kirby All All All All
Application Getkirby Panel All All All All
Application Getkirby Panel All All All All

References

ReferenceSourceLinkTags
Merge pull request #2962 from getkirby/fix/upload-validation · getkirby/kirby@db8f371 · GitHub MISC github.com Patch, Third Party Advisory
getkirby/panel - Packagist MISC packagist.org Product, Third Party Advisory
PHP Phar archives could be uploaded by Panel users as content files and executed · Advisory · getkirby/kirby · GitHub CONFIRM github.com Release Notes, Third Party Advisory
Prevent phar upload in file upload validation · getkirby-v2/panel@5a569d4 · GitHub MISC github.com Patch, Third Party Advisory
getkirby/cms - Packagist MISC packagist.org Product, Third Party Advisory
Release 3.4.5 · getkirby/kirby · GitHub MISC github.com Release Notes, Third Party Advisory
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis
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