CVE-2020-26255
Kirby Panel users could upload PHP Phar archives as content files before v2.5.14 and v3.4.5
Severity by source
Trivy's own label is CRITICAL. Rated critical by NVD. Rated lower by GHSA (medium).
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.
Affected packages and fixed versions
| Source | Package | Fixed in |
|---|---|---|
| composer::GitHub Security Advisory Composer | getkirby/cms, getkirby/panel | 3.4.5 and 1 more |
Show all 2 entries from 1 source
| Source | Package | Fixed in |
|---|---|---|
| composer::GitHub Security Advisory Composer | getkirby/cms | 3.4.5 |
| composer::GitHub Security Advisory Composer | getkirby/panel | 2.5.14 |
References
- https://github.com/getkirby-v2/panel/commit/5a569d4e3ddaea2b6628d7ec1472a3e8bc410881
- https://github.com/getkirby/kirby
- https://github.com/getkirby/kirby/commit/db8f371b13036861c9cc5ba3e85e27f73fce5e09
- https://github.com/getkirby/kirby/releases/tag/3.4.5
- https://github.com/getkirby/kirby/security/advisories/GHSA-g3h8-cg9x-47qw
- https://nvd.nist.gov/vuln/detail/CVE-2020-26255
- https://packagist.org/packages/getkirby/cms
- https://packagist.org/packages/getkirby/panel