CVE-2026-54220 PUBLISHED

Cross-Site Request Forgery in UBB.threads

Assigner: CERT-PL
Reserved: 12.06.2026 Published: 18.06.2026 Updated: 18.06.2026

uBB.threads is vulnerable to a Cross-Site Request Forgery (CSRF) due to a lack of protective mechanisms. This allows an attacker to trick an authenticated user into executing unintended actions.

Because vendor contact attempts were unsuccessful, the vulnerability has only been confirmed in version 7.7.5 but may also affect other versions.

Metrics

CVSS 4.0

CVSS Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:L/SC:N/SI:N/SA:N
CVSS Score: 8.6

Exploitability Metrics		Vulnerable System Impact Metrics		Subsequent System Impact Metrics
Attack Vector	Network	Confidentiality	High	Confidentiality	None
Attack Complexity	Low	Integrity	High	Integrity	None
Attack Requirements	None	Availability	Low	Availability	None
Privileges Required	None
User Interaction	Active

CVSS 4.0

Product Status

Vendor	UBB Systems
Product	UBB.threads
Versions	Default: unknown affected from 0 to 7.7.5 (incl.)

Credits

Kamil Szczurowski (Securitum) finder
Michał Wnękowicz (Securitum) finder

References

Problem Types

CWE-352 Cross-Site Request Forgery (CSRF) CWE

Impacts

CAPEC-62 Cross Site Request Forgery