CVE-2026-7890 | BDVDB-2026-334303 Detail

Description#

In Concrete CMS 9.5.0 and below, the RSS Displayer block accepts a feed URL from any page editor and fetches it server-side without validation enabling redirect-to-internal bypasses.  The Concrete CMS security team gave this vulnerability a CVSS v.4.0 score of 2.1 with a vector CVSS:4.0/AV:N/AC:L/AT:P/PR:H/UI:N/VC:N/VI:L/VA:N/SC:L/SI:N/SA:N.

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Exploit#

History#

1. Version 12026-05-21Record published in the CVE List.
2. Version 22026-05-22Most recent update recorded in the CVE List.