Vulnerability · Published Jun 18, 2026 · Assigned by CERT-PL

CVE-2026-54220Cross-Site Request Forgery in UBB.threads

High 8.6

In plain English

A high-severity cross-site request forgery in UBB.threads from UBB Systems. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.2% (higher than 8% of all known vulnerabilities).

Severity (CVSS 4.0)8.6High

Exploit odds (30 days)0.2%top 91.6% of all CVEs

Exploited in the wildNo reportsCISA SSVC: none

Attack toolingNoneno public tooling known

Official description

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.

Affected products (as reported)

Vendor	Product	Versions
UBB Systems	UBB.threads	0 – through 7.7.5

Weakness: CWE-352 · 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

References

https://www.ubbcentral.com/ product
https://cert.pl/en/posts/2026/06/CVE-2026-54219 third-party-advisory