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CVE-2026-43883

WWBN AVideo is an open source video platform. In versions up to and including 29.0, plugin/PayPalYPT/agreementCancel.json.php cancels a PayPal billing agreement using an attacker-supplied agreement parameter without verifying that the authenticated user owns the agreement. A low-privilege authenticated user who learns or obtains another user's PayPal billing agreement ID can silently suspend the victim's recurring subscription, causing revenue loss to the platform and loss of paid service to the
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:5d866c91d90a7983814ceea545ddedbcc04afc3ec66164a0b38fde1dc6900798
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":"<= 29.0"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:eb9a18815bb75a989d1201eb3b409364236c5325e400066952986951ef0a2d82 · sha256:fb35358b05ff59bc… · /containers/cna/affected/0

Provider-owned CVSS observations

1 source assertion
{"metric":{"attackComplexity":"HIGH","attackVector":"NETWORK","availabilityImpact":"LOW","baseScore":4.2,"baseSeverity":"MEDIUM","confidentialityImpact":"NONE","integrityImpact":"LOW","privilegesRequired":"LOW","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:L/A:L","version":"3.1"},"metric_type":"cvssV3_1"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:eb9a18815bb75a989d1201eb3b409364236c5325e400066952986951ef0a2d82 · sha256:fb35358b05ff59bc… · /containers/cna/metrics/0/cvssV3_1

CWE assertions

1 source assertion
{"cweId":"CWE-639","description":"CWE-639: Authorization Bypass Through User-Controlled Key","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:eb9a18815bb75a989d1201eb3b409364236c5325e400066952986951ef0a2d82 · sha256:fb35358b05ff59bc… · /containers/cna/problemTypes/0/descriptions/0

Source references

3 source assertions
{"name":"https://github.com/WWBN/AVideo/commit/0da3dcff1eda2f497694bf82b559829471c292c2","tags":["x_refsource_MISC"],"url":"https://github.com/WWBN/AVideo/commit/0da3dcff1eda2f497694bf82b559829471c292c2"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:eb9a18815bb75a989d1201eb3b409364236c5325e400066952986951ef0a2d82 · sha256:fb35358b05ff59bc… · /containers/cna/references/1
{"name":"https://github.com/WWBN/AVideo/security/advisories/GHSA-958h-qp3x-q4gj","tags":["x_refsource_CONFIRM"],"url":"https://github.com/WWBN/AVideo/security/advisories/GHSA-958h-qp3x-q4gj"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:eb9a18815bb75a989d1201eb3b409364236c5325e400066952986951ef0a2d82 · sha256:fb35358b05ff59bc… · /containers/cna/references/0
{"tags":["exploit"],"url":"https://github.com/WWBN/AVideo/security/advisories/GHSA-958h-qp3x-q4gj"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:eb9a18815bb75a989d1201eb3b409364236c5325e400066952986951ef0a2d82 · sha256:fb35358b05ff59bc… · /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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