CVE-2026-28697
1 advisory.
Packagist/craftcms/cms CVE-2026-28697: critical, EPSS 1.16%
Craft CMS Vulnerable to Authenticated RCE via "craft.app.fs.write()" in Twig Templates
Action: Upgrade craftcms/cms to 4.17.0-beta.1 or later.
composer require craftcms/cms:5.9.0-beta.1composer require craftcms/cms:4.17.0-beta.1Affected
| introduced | fixed | last affected |
|---|---|---|
| 5.0.0-RC1 | 5.9.0-beta.1 | - |
| 4.0.0-RC1 | 4.17.0-beta.1 | - |
Fixed versions
| 5.9.0-beta.1 | 4.17.0-beta.1 |
Sources
- osv: GHSA-v47q-jxvr-p68x
- https://github.com/craftcms/cms/security/advisories/GHSA-v47q-jxvr-p68x
- https://nvd.nist.gov/vuln/detail/CVE-2026-28697
- https://github.com/craftcms/cms/pull/18216
- https://github.com/craftcms/cms/pull/18219
- https://github.com/craftcms/cms/commit/9dc2a4a3ec8e9cd5e8c0d1129f36371437519197
- https://github.com/craftcms/cms
CVE-2026-28697 · published · modified · JSON