CVE Explorer
CVE-2026-43924
FOSSBilling is a free, open-source billing and client management system. Prior to version 0.8.0, the Redirect module does not validate the URL scheme of administrator-configured destination URLs before storing or issuing redirects. This allows arbitrary external URLs to be configured as redirect targets, creating an open redirect vulnerability exploitable for phishing attacks. Users following a legitimate FOSSBilling URL can be silently redirected to an attacker-controlled external site. The red
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
0
Affected products and versions
1 source assertion{"product":"FOSSBilling","vendor":"FOSSBilling","versions":[{"status":"affected","version":"< 0.8.0"}]}
- cve_program_cvelist_v5affectedurn:baitaphish:normalized-source-record:v2:b770d7b7d26ae1b75a1b0018445c6b021c1060e4806cd4cc7a8408e58bcd97f9 · sha256:e982d051dca53044… · /containers/cna/affected/0
Provider-owned CVSS observations
1 source assertion{"metric":{"attackComplexity":"LOW","attackRequirements":"NONE","attackVector":"NETWORK","baseScore":4.8,"baseSeverity":"MEDIUM","privilegesRequired":"HIGH","subAvailabilityImpact":"NONE","subConfidentialityImpact":"NONE","subIntegrityImpact":"LOW","userInteraction":"PASSIVE","vectorString":"CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:P/VC:N/VI:N/VA:N/SC:N/SI:L/SA:N","version":"4.0","vulnAvailabilityImpact":"NONE","vulnConfidentialityImpact":"NONE","vulnIntegrityImpact":"NONE"},"metric_type":"cvssV4_0"}
- cve_program_cvelist_v5cvssurn:baitaphish:normalized-source-record:v2:b770d7b7d26ae1b75a1b0018445c6b021c1060e4806cd4cc7a8408e58bcd97f9 · sha256:e982d051dca53044… · /containers/cna/metrics/0/cvssV4_0
CWE assertions
1 source assertion{"cweId":"CWE-601","description":"CWE-601: URL Redirection to Untrusted Site ('Open Redirect')","lang":"en","type":"CWE"}
- cve_program_cvelist_v5cweurn:baitaphish:normalized-source-record:v2:b770d7b7d26ae1b75a1b0018445c6b021c1060e4806cd4cc7a8408e58bcd97f9 · sha256:e982d051dca53044… · /containers/cna/problemTypes/0/descriptions/0
Source references
2 source assertions{"name":"https://github.com/FOSSBilling/FOSSBilling/releases/tag/0.8.0","tags":["x_refsource_MISC"],"url":"https://github.com/FOSSBilling/FOSSBilling/releases/tag/0.8.0"}
- cve_program_cvelist_v5referenceurn:baitaphish:normalized-source-record:v2:b770d7b7d26ae1b75a1b0018445c6b021c1060e4806cd4cc7a8408e58bcd97f9 · sha256:e982d051dca53044… · /containers/cna/references/1
{"name":"https://github.com/FOSSBilling/FOSSBilling/security/advisories/GHSA-v8rf-g37v-vgpx","tags":["x_refsource_CONFIRM"],"url":"https://github.com/FOSSBilling/FOSSBilling/security/advisories/GHSA-v8rf-g37v-vgpx"}
- cve_program_cvelist_v5referenceurn:baitaphish:normalized-source-record:v2:b770d7b7d26ae1b75a1b0018445c6b021c1060e4806cd4cc7a8408e58bcd97f9 · sha256:e982d051dca53044… · /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.