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CVE-2021-40104

HighCVSS 7.5/10Last modified Jun 17, 2026

Description

An issue was discovered in Concrete CMS through 8.5.5. There is an SVG sanitizer bypass.

Metrics

CVSS 3.1 7.5/10CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

Affected software

Vendor	Product	Versions
n/a	n/a	n/a

References

https://documentation.concretecms.org/developers/introduction/version-history/856-release-notesRelease Notes, Vendor Advisory
https://hackerone.com/reports/1102088Permissions Required, Third Party Advisory
https://documentation.concretecms.org/developers/introduction/version-history/856-release-notesRelease Notes, Vendor Advisory
https://hackerone.com/reports/1102088Permissions Required, Third Party Advisory

Timeline

Published: Sep 27, 2021
Last modified: Jun 17, 2026
NVD status: Modified

Related CVEs from 2021

CVE-2021-401056.1An issue was discovered in Concrete CMS through 8.5.5. There is XSS via Markdown Comments.CVE-2021-401066.1An issue was discovered in Concrete CMS through 8.5.5. There is unauthenticated stored XSS in blog comments via the website field.CVE-2021-401088.8An issue was discovered in Concrete CMS through 8.5.5. The Calendar is vulnerable to CSRF. ccm_token is not verified on the ccm/calendar/dia CVE-2021-401096.4A SSRF issue was discovered in Concrete CMS through 8.5.5. Users can access forbidden files on their local network. A user with permissions CVE-2021-40117.8A flaw was found in xorg-x11-server in versions before 21.1.2 and before 1.20.14. An out-of-bounds access can occur in the SwapCreateRegiste CVE-2021-401107.5In Apache James, using Jazzer fuzzer, we identified that an IMAP user can craft IMAP LIST commands to orchestrate a Denial Of Service using CVE-2021-401116.5In Apache James, while fuzzing with Jazzer the IMAP parsing stack, we discover that crafted APPEND and STATUS IMAP command could be used to CVE-2021-401127.5Multiple vulnerabilities in the web-based management interface of the Cisco Catalyst Passive Optical Network (PON) Series Switches Optical N CVE-2021-401139.8Multiple vulnerabilities in the web-based management interface of the Cisco Catalyst Passive Optical Network (PON) Series Switches Optical N CVE-2021-401147.5Multiple Cisco products are affected by a vulnerability in the way the Snort detection engine processes ICMP traffic that could allow an una CVE-2021-401156.1A vulnerability in Cisco Webex Video Mesh could allow an unauthenticated, remote attacker to conduct a cross-site scripting (XSS) attack aga CVE-2021-401167.5Multiple Cisco products are affected by a vulnerability in Snort rules that could allow an unauthenticated, remote attacker to cause a denia