CVE Explorer
CVE-2026-54221
UBB.threads is vulnerable to Reflected XSS. The application improperly handles user input in certain requests, enabling attackers to execute arbitrary JavaScript in the context of a victim's browser by tricking them into clicking a crafted link.
Because vendor contact attempts were unsuccessful, the vulnerability has only been confirmed in version 7.7.5 but may also affect other versions.
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
0
Affected products and versions
1 source assertion{"defaultStatus":"unknown","product":"UBB.threads","vendor":"UBB Systems","versions":[{"lessThanOrEqual":"7.7.5","status":"affected","version":"0","versionType":"semver"}]}
- cve_program_cvelist_v5affectedurn:baitaphish:normalized-source-record:v2:2bd872e62ae4120d830fb83e49227d3b304fa052d9ff6d529f469955d3f0981c · sha256:d3ddb38123fd3513… · /containers/cna/affected/0
Provider-owned CVSS observations
1 source assertion{"metric":{"Automatable":"NOT_DEFINED","Recovery":"NOT_DEFINED","Safety":"NOT_DEFINED","attackComplexity":"LOW","attackRequirements":"NONE","attackVector":"NETWORK","baseScore":5.1,"baseSeverity":"MEDIUM","privilegesRequired":"NONE","providerUrgency":"NOT_DEFINED","subAvailabilityImpact":"NONE","subConfidentialityImpact":"LOW","subIntegrityImpact":"LOW","userInteraction":"ACTIVE","valueDensity":"NOT_DEFINED","vectorString":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N","version":"4.0","vulnAvailabilityImpact":"NONE","vulnConfidentialityImpact":"NONE","vulnIntegrityImpact":"N…
- cve_program_cvelist_v5cvssurn:baitaphish:normalized-source-record:v2:2bd872e62ae4120d830fb83e49227d3b304fa052d9ff6d529f469955d3f0981c · sha256:d3ddb38123fd3513… · /containers/cna/metrics/0/cvssV4_0
CWE assertions
1 source assertion{"cweId":"CWE-79","description":"CWE-79 Improper Neutralization of Input During Web Page Generation (XSS or 'Cross-site Scripting')","lang":"en","type":"CWE"}
- cve_program_cvelist_v5cweurn:baitaphish:normalized-source-record:v2:2bd872e62ae4120d830fb83e49227d3b304fa052d9ff6d529f469955d3f0981c · sha256:d3ddb38123fd3513… · /containers/cna/problemTypes/0/descriptions/0
Source references
2 source assertions{"tags":["third-party-advisory"],"url":"https://cert.pl/en/posts/2026/06/CVE-2026-54219"}
- cve_program_cvelist_v5referenceurn:baitaphish:normalized-source-record:v2:2bd872e62ae4120d830fb83e49227d3b304fa052d9ff6d529f469955d3f0981c · sha256:d3ddb38123fd3513… · /containers/cna/references/1
{"tags":["product"],"url":"https://www.ubbcentral.com/"}
- cve_program_cvelist_v5referenceurn:baitaphish:normalized-source-record:v2:2bd872e62ae4120d830fb83e49227d3b304fa052d9ff6d529f469955d3f0981c · sha256:d3ddb38123fd3513… · /containers/cna/references/0
Attribution and limitations
- CVE Program CVEList V5: Reproduce the MITRE copyright designation and CVE license in copies. Source →
Provider severity values are preserved separately. Baitaphish does not convert them into a risk rating, infer affected products, or treat EPSS as observed exploitation.