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Backdrop CMS Backdrop CMSBackdrop CMS before 1.35.1 Information Disclosure via Configuration Export Archive

Risk 41
Severity
8.2
Infoleak
AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N

Backdrop CMS before 1.35.1 contains an information disclosure vulnerability that allows unauthenticated attackers to retrieve configuration export archives left on the server after transfer. Attackers can download compressed archives generated by users with configuration export permission to obtain the full site configuration, including sensitive settings.

First published (updated )
CVE-2026-104476

Backdrop CMS GDPR Cookies moduleXSS

Risk 19
Severity
1.8
XSS
CVSS:4.0/AV:N/AC:H/AT:P/PR:H/UI:A/VC:N/VI:N/VA:N/SC:N/SI:L/SA:L/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

The GDPR cookies module for Backdrop CMS (before

1.x-1.3.5) doesn't sufficiently protect visitors from Cross Site Scripting (XSS) if a malicious value has been provided for the optional 'Info content' field for the YouTube service. This is mitigated by the fact that an attacker must have a role with the permission "Create a GDPR Cookies Service" or "Edit any GDPR Cookies Service" and a site must have added a YouTube service as configuration.

First published (updated )
CVE-2025-71310

Backdrop CMS Salesforce moduleCSRF

Risk 60
Severity
7.1
CSRF
AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:L

The Salesforce module before 1.x-1.0.1 for Backdrop CMS does not properly use a random state parameter to protect the authorization flow against CSRF attacks.

First published (updated )
CVE-2026-45430

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