Description
Incorrect access control in the AdHoc User creation form of EMSigner v2.8.7 allows unauthenticated attackers to arbitrarily modify usernames and privileges by using the email address of a registered user.
References (1)
Core 1
Core References
Exploit, Third Party Advisory
https://secpro.llc/EMSigner-CVE-1/
Scores
CVSS v3
5.9
EPSS
0.0046
EPSS Percentile
36.8%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N
CISA SSVC
Vulnrichment
Exploitation
poc
Automatable
no
Technical Impact
partial
Details
CWE
CWE-284
Status
published
Products (1)
emsigner/emsigner
2.8.7
Published
Nov 14, 2023
Tracked Since
Feb 18, 2026