Medium severity5.4NVD Advisory· Published Feb 16, 2023· Updated Jun 17, 2026
CVE-2021-40555
CVE-2021-40555
Description
Cross site scripting (XSS) vulnerability in flatCore-CMS 2.2.15 allows attackers to execute arbitrary code via description field on the new page creation form.
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LLM-synthesized narrative grounded in this CVE's description and references.
Affected products
3cpe:2.3:a:flatcore:flatcore:2.0.7:*:*:*:*:*:*:*+ 1 more
- cpe:2.3:a:flatcore:flatcore:2.0.7:*:*:*:*:*:*:*
- (no CPE)range: =2.2.15
- flatCore-CMS/flatCore-CMSdescription
Patches
Vulnerability mechanics
References
1- github.com/flatCore/flatCore-CMS/issues/56nvdExploitIssue TrackingPatchThird Party Advisory
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