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CVE-2026-39366

WWBN AVideo is an open source video platform. In versions 26.0 and prior, the PayPal IPN v1 handler at plugin/PayPalYPT/ipn.php lacks transaction deduplication, allowing an attacker to replay a single legitimate IPN notification to repeatedly inflate their wallet balance and renew subscriptions. The newer ipnV2.php and webhook.php handlers correctly deduplicate via PayPalYPT_log entries, but the v1 handler was never updated and remains actively referenced as the notify_url for billing plans.
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:148be0780f38d6722c413b7259403bb625ec5fcd5fabc6ddf11275a440414f4f
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
0

Affected products and versions

1 source assertion
{"product":"AVideo","vendor":"WWBN","versions":[{"status":"affected","version":"<= 26.0"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:05c2bd6ac179dcde2d66d23cfc7f7636b93b9746b14f6dbbddeb995134b1b8a6 · sha256:7072de95be9a30fb… · /containers/cna/affected/0

Provider-owned CVSS observations

1 source assertion
{"metric":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"NONE","baseScore":6.5,"baseSeverity":"MEDIUM","confidentialityImpact":"NONE","integrityImpact":"HIGH","privilegesRequired":"LOW","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N","version":"3.1"},"metric_type":"cvssV3_1"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:05c2bd6ac179dcde2d66d23cfc7f7636b93b9746b14f6dbbddeb995134b1b8a6 · sha256:7072de95be9a30fb… · /containers/cna/metrics/0/cvssV3_1

CWE assertions

1 source assertion
{"cweId":"CWE-345","description":"CWE-345: Insufficient Verification of Data Authenticity","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:05c2bd6ac179dcde2d66d23cfc7f7636b93b9746b14f6dbbddeb995134b1b8a6 · sha256:7072de95be9a30fb… · /containers/cna/problemTypes/0/descriptions/0

Source references

3 source assertions
{"name":"https://github.com/WWBN/AVideo/commit/8f53e9d9c6aaa07d51ace30691981edbbfb5ca1c","tags":["x_refsource_MISC"],"url":"https://github.com/WWBN/AVideo/commit/8f53e9d9c6aaa07d51ace30691981edbbfb5ca1c"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:05c2bd6ac179dcde2d66d23cfc7f7636b93b9746b14f6dbbddeb995134b1b8a6 · sha256:7072de95be9a30fb… · /containers/cna/references/1
{"name":"https://github.com/WWBN/AVideo/security/advisories/GHSA-mmw7-wq3c-wf9p","tags":["x_refsource_CONFIRM"],"url":"https://github.com/WWBN/AVideo/security/advisories/GHSA-mmw7-wq3c-wf9p"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:05c2bd6ac179dcde2d66d23cfc7f7636b93b9746b14f6dbbddeb995134b1b8a6 · sha256:7072de95be9a30fb… · /containers/cna/references/0
{"tags":["exploit"],"url":"https://github.com/WWBN/AVideo/security/advisories/GHSA-mmw7-wq3c-wf9p"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:05c2bd6ac179dcde2d66d23cfc7f7636b93b9746b14f6dbbddeb995134b1b8a6 · sha256:7072de95be9a30fb… · /containers/adp/0/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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