Medium severity · published Oct 19, 2026
CVE-2026-112040
diem-project diem Sign-In BasedmUserActions.class.php redirect
4.3
CVSS
0.3%
EPSS
No
On KEV
Description
A vulnerability was determined in diem-project diem up to 116974edfb9a5b8bd69cb13586dc62bcdbb485ad. This affects an unknown part of the file dmCorePlugin/plugins/dmUserPlugin/modules/dmUser/lib/BasedmUserActions.class.php of the component Sign-In. This manipulation of the argument Referer causes open redirect. The attack is possible to be carried out remotely. The exploit has been publicly disclosed and may be utilized. This product adopts a rolling release strategy to maintain continuous delivery. Therefore, version details for affected or updated releases cannot be specified. The project was informed of the problem early through an issue report but has not responded yet.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
Required
Confidentiality
None
Integrity
Low
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.3% · higher than 18% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
DI
diem · diem-project
116974edfb9a5b8bd69cb13586dc62bcdbb485ad · source: vendor
Affected product
DI
diem
diem-project
More from diem
6.3
CVE-2026-112030
diem-project diem dmDataLoad.php default password
6.3
CVE-2026-82679
diem-project diem Widget Editor dmWidgetContentBaseMediaForm.php unrestricted upload
5.3
CVE-2026-86183
diem-project diem dmWidget BasedmWidgetActions.class.php authorization
4.7
CVE-2026-112138
diem-project diem dmCodeEditor actions.class.php join path traversal
4.7
CVE-2026-82678
diem-project diem Administrative Console actions.class.php executeCommand os command injection