MEDIUMVulnerability
CVE-2026-81918
Concrete CMS below 9.5.3 is vulnerable to Stored XSS via the Date Format field in the Page Attribute Display block. A user with edit_page_contents permissions could store a payload which executes in the browser of any visitor who viewed a page where the block was configured to display a date-type attribute. The Concrete CMS security team gave this vulnerability a CVSS v4.0 score of 4.8 with vector CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:P/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N. Thanks Oriol Ortiz for reporting.
Properties
- severity
- MEDIUM
- score
- 4.8
- cve_id
- CVE-2026-81918
- signal_observed_at
- 2026-09-21T23:07:07+00:00
- vector
- CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N
- published_at
- 2026-09-11T21:17:21.063
- last_modified
- 2026-09-18T15:05:21.497
Related Entities (3)
AFFECTS_PRODUCT (1)
→[Product]
HAS_WEAKNESS (1)
→[Weakness]Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
DESCRIBED_BY (1)
→[Source]NVD
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