CVE-2026-39366

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Source
https://cve.org/CVERecord?id=CVE-2026-39366
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-39366.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-39366
Aliases
Published
2026-04-07T19:21:12Z
Modified
2026-08-12T03:51:44Z
Severity
  • 6.5 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N CVSS Calculator
Summary
WWBN AVideo Affected by a PayPal IPN Replay Attack Enabling Wallet Balance Inflation via Missing Transaction Deduplication in ipn.php
Details

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.

Database specific 
{
    "cna_assigner":  "GitHub_M",
    "cwe_ids":  [
        "CWE-345"
    ],
    "osv_generated_from":  "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/39xxx/CVE-2026-39366.json"
}
References

Affected packages

Git / github.com/wwbn/avideo

Affected ranges

Type
GIT
Repo
https://github.com/wwbn/avideo
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Fixed
8f53e9d9c6aaa07d51ace30691981edbbfb5ca1c
Database specific
Show details 
{
    "cpe":  "cpe:2.3:a:wwbn:avideo:*:*:*:*:*:*:*:*",
    "extracted_events":  [
        {
            "introduced":  "0"
        },
        {
            "last_affected":  "26.0"
        }
    ],
    "source":  [
        "CPE_RANGE",
        "REFERENCES"
    ]
}

Affected versions

10.*
10.8
Other
11
11.*
11.1
11.1.1
11.5
11.6
12.*
12.4
14.*
14.3
14.3.1
18.*
18.0
2.*
2.2
2.7
21.*
21.0
22.*
22.0
24.*
24.0
25.*
25.0
26.*
26.0
3.*
3.4
4.*
4.0
7.*
7.2
7.3
7.4
7.6
7.7
7.8
8.*
8.1
8.5
8.6
8.7
8.9
8.9.1

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-39366.json"