PT-2021-22809 · Unknown · Concrete Cms

Bl4De + 1 · Published 2021-09-24 · Updated 2021-09-30 · CVE-2021-40100

Positive Technologies (AI Summary)

CVSS v3.1

5.4

Medium

Base vector

AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N

Name of the Vulnerable Software and Affected Versions Concrete CMS versions through 8.5.5

Description An issue in Concrete CMS allows Stored XSS to occur in Conversations when the Active Conversation Editor is set to Rich Text.

Recommendations For versions through 8.5.5, update to a version that contains a fix for this issue to prevent Stored XSS in Conversations. At the moment, there is no information about a newer version that contains a fix for this vulnerability.

XSS

Weakness Enumeration

CWE-79

Related Identifiers

CVE-2021-40100

Affected Products

Concrete Cms

References · 5

• https://documentation.concretecms.org/developers/introduction/version-history/856-release-notes · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2021-40100 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2021-40100 · Security Note
• https://t.me/cibsecurity/29389 · Telegram Post
• https://hackerone.com/reports/616770 · Note