CVE-2026-104476

Backdrop CMS before 1.35.1 Information Disclosure via Configuration Export Archive

Published Oct 2, 2026 CVSS 4.0 · 8.2 High EPSS < 1% KEV · Not listed
Description
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.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

No advisories available
History
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Type Values Removed Values Added
Description 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.
Title Backdrop CMS before 1.35.1 Information Disclosure via Configuration Export Archive
First Time appeared Backdropcms
Backdropcms backdrop
Weaknesses CWE-200
CPEs cpe:2.3:a:backdropcms:backdrop:*:*:*:*:*:*:*:*
Vendors & Products Backdropcms
Backdropcms backdrop
References
Metrics cvssV3_1

{'score': 5.9, 'vector': 'CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N'}

cvssV4_0

{'score': 8.2, 'vector': 'CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
VulnCheck
Published
Updated
Oct 5, 2026, 5:09 PM
Reserved
Oct 2, 2026, 12:55 AM
Status
Deferred
Published
Oct 3, 2026, 12:16 AM
Modified
Oct 6, 2026, 3:25 PM