Medium severity · published Nov 18, 2025
CVE-2025-63828
Host Header Injection vulnerability in Backdrop CMS 1.32.1 allows attackers to manipulate the Host header in password reset requests, leading to redirects to malicious domains and…
6.1
CVSS
0.2%
EPSS
No
On KEV
Description
Host Header Injection vulnerability in Backdrop CMS 1.32.1 allows attackers to manipulate the Host header in password reset requests, leading to redirects to malicious domains and potential session hijacking via cookie injection.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
Required
Confidentiality
Low
Integrity
Low
Availability
None
Scope
Changed
Exploitation
Is it being used?
Exploit prediction (EPSS)0.2% · higher than 14% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
BC
Backdrop Cms · Backdropcms
1.32.1 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2025-63828
CVE.org
https://www.cve.org/CVERecord?id=CVE-2025-63828
Release Notes
https://github.com/mertdurum06/BackdropCms-1.32.1/
Exploit
https://github.com/mertdurum06/BackdropCms-1.32.1/blob/main/backdropcms_exploit.txt
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