CVE-2026-55790
1 advisory.
Packagist/craftcms/cms CVE-2026-55790: high
Craft CMS: DOM XSS via GitHub issue title in CraftSupport widget
Action: Upgrade craftcms/cms to 4.17.16 or later.
composer require craftcms/cms:5.9.23composer require craftcms/cms:4.17.16Affected
| introduced | fixed | last affected |
|---|---|---|
| 5.0.0-RC1 | 5.9.23 | - |
| 4.0.0-RC1 | 4.17.16 | - |
Fixed versions
| 5.9.23 | 4.17.16 |
Sources
- osv: GHSA-24x4-j6x9-rfw5
- https://github.com/craftcms/cms/security/advisories/GHSA-24x4-j6x9-rfw5
- https://nvd.nist.gov/vuln/detail/CVE-2026-55790
- https://github.com/craftcms/cms/commit/6bbb66038a268552180ca5c8eed9f46ea25a4417
- https://github.com/craftcms/cms
CVE-2026-55790 · published · modified · JSON