Critical severity9.8NVD Advisory· Published Jun 30, 2021· Updated Jun 17, 2026
CVE-2021-27903
CVE-2021-27903
Description
An issue was discovered in Craft CMS before 3.6.7. In some circumstances, a potential Remote Code Execution vulnerability existed on sites that did not restrict administrative changes (if an attacker were somehow able to hijack an administrator's session).
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected packages
Versions sourced from the GitHub Security Advisory.
| Package | Affected versions | Patched versions |
|---|---|---|
craftcms/cmsPackagist | < 3.6.7 | 3.6.7 |
Affected products
2- Craft CMS/Craft CMSdescription
Patches
Vulnerability mechanics
References
5- github.com/craftcms/cms/commit/c17728fa0bec11d3b82c34defe0930ed409aec38nvdPatchThird Party AdvisoryWEB
- github.com/advisories/GHSA-x2j7-6hxm-87p3ghsaADVISORY
- github.com/craftcms/cms/blob/develop/CHANGELOG.mdnvdRelease NotesThird Party AdvisoryWEB
- github.com/craftcms/cms/blob/develop/CHANGELOG.mdnvdRelease NotesThird Party AdvisoryWEB
- nvd.nist.gov/vuln/detail/CVE-2021-27903ghsaADVISORY
News mentions
0No linked articles in our index yet.