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CVE-2026-40495

FOSSBilling is a free, open-source billing and client management system. Versions prior to 0.8.0 leak the exact system version through asset cache buster parameters in HTML output, bypassing the `hide_version_public` security setting. The FOSSBilling version is embedded in the query string of every `<script>` and `<link>` tag generated by the `script_tag` and `stylesheet_tag` Twig filters. This information is visible to all visitors — including unauthenticated guests — on every page, regardless
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:e8e739325752be2eda706ca255fb884482e2efefc292e00928bded51e0c34db3
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_v5affected
    urn:baitaphish:normalized-source-record:v2:e6f2283e97f8e9172daabec7916660697254ebdb7f51c7fcc3e3c8e233ddd8ea · sha256:3cf7d50c24939b57… · /containers/cna/affected/0

Provider-owned CVSS observations

1 source assertion
{"metric":{"attackComplexity":"LOW","attackRequirements":"NONE","attackVector":"NETWORK","baseScore":6.9,"baseSeverity":"MEDIUM","privilegesRequired":"NONE","subAvailabilityImpact":"NONE","subConfidentialityImpact":"NONE","subIntegrityImpact":"NONE","userInteraction":"NONE","vectorString":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N","version":"4.0","vulnAvailabilityImpact":"NONE","vulnConfidentialityImpact":"LOW","vulnIntegrityImpact":"NONE"},"metric_type":"cvssV4_0"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:e6f2283e97f8e9172daabec7916660697254ebdb7f51c7fcc3e3c8e233ddd8ea · sha256:3cf7d50c24939b57… · /containers/cna/metrics/0/cvssV4_0

CWE assertions

1 source assertion
{"cweId":"CWE-200","description":"CWE-200: Exposure of Sensitive Information to an Unauthorized Actor","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:e6f2283e97f8e9172daabec7916660697254ebdb7f51c7fcc3e3c8e233ddd8ea · sha256:3cf7d50c24939b57… · /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_v5reference
    urn:baitaphish:normalized-source-record:v2:e6f2283e97f8e9172daabec7916660697254ebdb7f51c7fcc3e3c8e233ddd8ea · sha256:3cf7d50c24939b57… · /containers/cna/references/1
{"name":"https://github.com/FOSSBilling/FOSSBilling/security/advisories/GHSA-gqcp-g7rm-p5v6","tags":["x_refsource_CONFIRM"],"url":"https://github.com/FOSSBilling/FOSSBilling/security/advisories/GHSA-gqcp-g7rm-p5v6"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:e6f2283e97f8e9172daabec7916660697254ebdb7f51c7fcc3e3c8e233ddd8ea · sha256:3cf7d50c24939b57… · /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.

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