prive/formulaires/configurer_preferences.php in SPIP before 3.2.8 does not properly validate the couleur, display, display_navigation, display_outils, imessage, and spip_ecran parameters.
https://www.debian.org/security/2020/dsa-4798
https://lists.debian.org/debian-lts-announce/2020/12/msg00036.html
https://git.spip.net/spip/spip/compare/v3.2.7...v3.2.8
https://git.spip.net/spip/spip/commit/ae4267eba1022dabc12831ddb021c5d6e09040f8
Source: Mitre, NVD
Published: 2020-11-23
Updated: 2021-02-04
Base Score: 7.5
Vector: CVSS2#AV:N/AC:L/Au:N/C:P/I:P/A:P
Severity: High
Base Score: 9.8
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Severity: Critical
EPSS: 0.00713