PT-2025-31997 · Unknown · Concrete Cms

Fortbridge · Published 2025-08-05 · Updated 2025-08-06 · CVE-2025-8571

Positive Technologies (AI Summary)

CVSS v3.1

4.8

Medium

Base vector

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

Name of the Vulnerable Software and Affected Versions Concrete CMS versions 9.0.0 through 9.4.2 Concrete CMS versions prior to 8.5.21

Description The software is vulnerable to Reflected Cross-Site Scripting (XSS) in the Conversation Messages Dashboard Page. Unsanitized input could lead to session cookie or token theft, web content defacement, redirection to malicious sites, and potentially unauthorized actions if the victim is an administrator.

Recommendations Concrete CMS versions 9.0.0 through 9.4.2: At the moment, there is no information about a newer version that contains a fix for this vulnerability. Concrete CMS versions prior to 8.5.21: At the moment, there is no information about a newer version that contains a fix for this vulnerability.

RCE

XSS

Weakness Enumeration

CWE-20

CWE-79

Related Identifiers

CVE-2025-8571

GHSA-4PCG-PJP5-3MC6

Affected Products

Concrete Cms

References · 12

• https://osv.dev/vulnerability/CVE-2025-8571 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2025-8571 · Security Note
• https://osv.dev/vulnerability/GHSA-4pcg-pjp5-3mc6 · Vendor Advisory
• https://github.com/concretecms/concretecms · Note
• https://github.com/concretecms/concretecms/commit/f7630b467d3a234d3d333ca117046a500e7ee2b6 · Note
• https://github.com/concretecms/concretecms/commit/4b39dcc17c309dc82eb8398e8cdb146942f62f92 · Note
• https://twitter.com/VulmonFeeds/status/1952932604862206234 · Twitter Post
• https://documentation.concretecms.org/9-x/developers/introduction/version-history/943-release-notes · Note
• https://documentation.concretecms.org/developers/introduction/version-history/8521-release-notes · Note
• https://t.me/cveNotify/131011 · Telegram Post
• https://concretecms.org/download · Note
• https://twitter.com/CVEnew/status/1952867202811740621 · Twitter Post