Vulnerability Description
Kirby 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.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Getkirby | Kirby | < 3.4.5 |
| Getkirby | Panel | < 2.5.14 |
Related Weaknesses (CWE)
References
- https://github.com/getkirby-v2/panel/commit/5a569d4e3ddaea2b6628d7ec1472a3e8bc41PatchThird Party Advisory
- https://github.com/getkirby/kirby/commit/db8f371b13036861c9cc5ba3e85e27f73fce5e0PatchThird Party Advisory
- https://github.com/getkirby/kirby/releases/tag/3.4.5Release NotesThird Party Advisory
- https://github.com/getkirby/kirby/security/advisories/GHSA-g3h8-cg9x-47qwRelease NotesThird Party Advisory
- https://packagist.org/packages/getkirby/cmsProductThird Party Advisory
- https://packagist.org/packages/getkirby/panelProductThird Party Advisory
- https://github.com/getkirby-v2/panel/commit/5a569d4e3ddaea2b6628d7ec1472a3e8bc41PatchThird Party Advisory
- https://github.com/getkirby/kirby/commit/db8f371b13036861c9cc5ba3e85e27f73fce5e0PatchThird Party Advisory
- https://github.com/getkirby/kirby/releases/tag/3.4.5Release NotesThird Party Advisory
- https://github.com/getkirby/kirby/security/advisories/GHSA-g3h8-cg9x-47qwRelease NotesThird Party Advisory
- https://packagist.org/packages/getkirby/cmsProductThird Party Advisory
- https://packagist.org/packages/getkirby/panelProductThird Party Advisory
FAQ
What is CVE-2020-26255?
CVE-2020-26255 is a vulnerability with a CVSS score of 6.8 (MEDIUM). Kirby 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 th...
How severe is CVE-2020-26255?
CVE-2020-26255 has been rated MEDIUM with a CVSS base score of 6.8/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2020-26255?
Check the references section above for vendor advisories and patch information. Affected products include: Getkirby Kirby, Getkirby Panel.