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8.5.19 Release Notes

Security Updates

Fixed CVE-2024-8291 Stored XSS in Image Editor Background Color by sanitizing output of "Save Background Image Colour" in file thumbnail dashboard single page with commit dbce253166f6b10ff3e0c09e50fd395370b8b065 for version 8 and commit 12183 for version 9. The Concrete CMS Security Team gave this a CVSS v4 score of 2.1 with vector CVSS:4.0/AV:N/AC:H/AT:N/PR:H/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N Prior to the fix a rogue admin could add malicious code to the Thumbnails/Add Type. Thanks Alexey Solovyev for reporting HackerOne 921527.

Fixed CVE-2024-7398 Stored XSS Vulnerability in Calendar Event Addition Feature with commit 7c8ed0d1d9db0d7f6df7fa066e0858ea618451a5 for version 8 and commits 12183 and 12184 for version 9. The Concrete CMS Security Team gave this vulnerability a CVSS v4 score of 1.8 with vector VSS:4.0/AV:N/AC:H/AT:N/PR:H/UI:A/VC:N/VI:N/VA:N/SC:L/SI:N/SA:N Prior to the fix, the calendar event name was not sanitized on output. Users or groups with permission to create event calendars could embed scripts and users or groups with permission to modify event calendars could execute scripts. Thank you Yusuke Uchida for reporting HackerOne 2400810.

Fixed CVE-2024-8661 Stored XSS in the "Next&Previous Nav" block with commit 12204 for version 9 and with commit ce5ee2ab83fe8de6fa012dd51c5a1dde05cb0dc4 for version 8. The Concrete CMS Security Team gave this vulnerability a CVSS v4 score of 4.6 with vector CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:A/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N. Prior to the fix, a rogue admin could add a malicious payload. Since the "Next&Previous Nav" block output was not sufficiently sanitized, the malicious payload could be executed in the browsers of targeted users. Thanks Chu Quoc Khanh for reporting HackerOne 2610205
	
8.5.18 Release Notes

Bug Fixes

Fixed bug where boolean page attributes that are checked by default show up as checked even if they have previously been saved unchecked (thanks hissy)
    Fixed some issues when attempting to use Redis to store session under certain conditions (thanks mlocati)

Security Updates

Fixed CVE-2024-4350 Stored XSS in RSS Displayer with commit 12166 for version 9 and with commit c08d9671cec4e7afdabb547339c4bc0bed8eab06 for version 8. Prior to the fix a rogue administrator could inject malicious code into fields due to insufficient input validation. The Concrete CMS security team gave this vulnerability a CVSS v3.1 score of 3.0 with a vector of AV:N/AC:H/PR:H/UI:N/S:C/C:L/I:N/A:N and a CVSS v4 score of 2.1 with vector CVSS:4.0/AV:N/AC:H/AT:N/PR:H/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N Thanks m3dium for reporting HackerOne 2479824

Fixed CVE-2024-7394 Stored XSS in getAttributeSetName() by sanitizing Board instance names on output with commit 12166 for version 9 and commit c08d9671cec4e7afdabb547339c4bc0bed8eab06 for version 8. Prior to the fix, a rogue administrator could inject malicious code. The Concrete CMS team ranked this a CVSS v3.1 rank of 2 with vector AV:N/AC:H/PR:H/UI:R/S:U/C:L/I:N/A:N and a CVSS v4.0 rank of 1.8 with vector CVSS:4.0/AV:N/AC:H/AT:N/PR:H/UI:A/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N. Thanks m3dium for reporting HackerOne 2463288

Show a more generic error message in RSS Displayer block if curl is unable to load posts. Thanks m3dium for recommending this in HackerOne 2479824
	
8.5.17 Release Notes

Behavioral Improvements

Added notifications into the interface about the new marketplace coming in Concrete CMS 9.3.0.

Bug Fixes

Backported fix from Concrete CMS 9: CollectionSearchIndexAttributes table is updated without approving the page version (thanks hissy)

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