Description
UBB.threads is vulnerable to Denial of Service (DoS). By sending multiple concurrent requests to view any user profile on instances with many registered users, an authenticated attacker can easily exhaust database resources and completely deny access to the application for other users. Because vendor contact attempts were unsuccessful, the vulnerability has only been confirmed in version 7.7.5 but may also affect other versions.
References (2)
Core 2
Core References
Product product
https://www.ubbcentral.com/
Third Party Advisory third-party-advisory
https://cert.pl/en/posts/2026/06/CVE-2026-54219
Scores
CVSS v4
7.1
EPSS
0.0027
EPSS Percentile
19.4%
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/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
CISA SSVC
Vulnrichment
Exploitation
none
Automatable
no
Technical Impact
partial
Details
CWE
CWE-405
Status
published
Products (1)
UBB Systems/UBB.threads
< 7.7.5
Published
Jun 18, 2026
Tracked Since
Jun 18, 2026