GHSA-xj9w-cgqg-q897: Duplicate Advisory AVideo Has Unauthenticated PGP Message Vulnerability

MODERATE
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CVSS 6.5
CWE-306
Published
Advisory Summary

GHSA-xj9w-cgqg-q897 is a MODERATE (CVSS 6.5) avideo has unauthenticated pgp message vulnerability (CWE-306: Missing Authentication for Critical Function) affecting Duplicate Advisory libraries in the Packagist ecosystem. The issue involves avideo has unauthenticated pgp message decryption via public endpoint. Remediation is available in the latest vendor maintenance releases.

GHSA-xj9w-cgqg-q897 at a Glance

CVE Identifier N/A
GHSA Identifier GHSA-xj9w-cgqg-q897
Severity MODERATE
CVSS v3.1 Base Score 6.5
CWE Classification CWE-306: Missing Authentication for Critical Function
Affected Product Duplicate Advisory
Package Ecosystem Packagist
Published Date
Last Updated

Security Impact

CVSS: 6.5

The security impact metrics below are parsed directly from the CVSS v3.1 vector string (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:L).

Attack Vector Network (AV:N)
Attack Complexity Low (AC:L)
Privileges Required None (PR:N)
User Interaction None (UI:N)
Scope Unchanged (S:U)
Confidentiality Low (C:L)
Integrity None (I:N)
Availability Low (A:L)

How to Fix GHSA-xj9w-cgqg-q897

To remediate this vulnerability, upgrade all affected Duplicate Advisory dependencies to a patched release. Both direct and transitive dependencies should be checked, as frameworks or security libraries may pull in vulnerable versions transitively.

wwbn/avideo fixed: Latest secure release 
Upgrade wwbn/avideo to Latest secure release
Verify Direct and Transitive Dependencies

Run the following command in your project directory to verify that all resolved dependencies use the patched release: 

inspect dependencies for wwbn/avideo

How to Check if You Are Affected

To determine whether your application is affected by GHSA-xj9w-cgqg-q897, inspect your project dependencies for Duplicate Advisory:

inspect dependencies for wwbn/avideo

Analyze the terminal output to locate any version of Duplicate Advisory in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than the patched release), your application is affected.

Note: Verify declared build manifests and deployed runtime container environments.

Technical Details

Vulnerability Mechanism & Technical Analysis

This vulnerability is classified under CWE-306: Missing Authentication for Critical Function, where the product does not perform any authentication for functionality that requires a provable user identity or consumes a significant amount of resources. In Duplicate Advisory, software state validation or input boundaries are circumvented during processing. Review the official source advisory statement below for specific affected components, classes, and reproduction details.

Source Advisory Statement

### Duplicate Advisory This advisory has been withdrawn because it is a duplicate of GHSA-5x2w-37xf-7962. This link is maintained to preserve external references. ### Original Description AVideo through version 25.0 contains an authentication bypass vulnerability in the decryptMessage.json.php endpoint that allows unauthenticated users to decrypt PGP messages. Remote attackers can submit private keys, ciphertext, and passphrases to perform server-side decryption without credentials, exposing key material to logs and enabling resource exhaustion attacks.

GHSA-xj9w-cgqg-q897 Affected Duplicate Advisory Versions

1 component(s)
Product / Package Ecosystem Affected Versions Fixed Version
wwbn/avideo
 Packagist
≤ 25.0

References

GitHub Advisory / Wiki ADVISORY
https://github.com/WWBN/AVideo/security/advisories/GHSA-5x2w-37xf-7962
NVD — GHSA-xj9w-cgqg-q897 NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-56346
Duplicate Advisory Source Repository REPOSITORY
https://github.com/WWBN/AVideo
www.vulncheck.com/advisories/avideo-u... WEB
https://www.vulncheck.com/advisories/avideo-unauthenticated-pgp-message-decryption-via-decryptmessage-json-php-endpoint

Frequently Asked Questions

What is GHSA-xj9w-cgqg-q897?
GHSA-xj9w-cgqg-q897 is a security vulnerability in Duplicate Advisory involving AVideo has Unauthenticated PGP Message Decryption via Public Endpoint under CWE-306: Missing Authentication for Critical Function.
Which Duplicate Advisory versions are affected?
Affected versions include releases prior to current release patches across affected packages: wwbn/avideo.
What version fixes GHSA-xj9w-cgqg-q897?
Upgrading to current release patches (or the latest patched release for your respective branch) resolves the vulnerability.
Is wwbn/avideo affected?
Yes, wwbn/avideo is affected in releases prior to Latest secure release. Upgrade your dependency to Latest secure release or later.
What is the CVSS score of GHSA-xj9w-cgqg-q897?
GHSA-xj9w-cgqg-q897 has a CVSS v3.1 base score of 6.5 (MODERATE) with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:L.
What CWE is associated with GHSA-xj9w-cgqg-q897?
GHSA-xj9w-cgqg-q897 is classified under CWE-306: Missing Authentication for Critical Function (The product does not perform any authentication for functionality that requires a provable user identity or consumes a significant amount of resources.).
How can I check Packagist dependencies for GHSA-xj9w-cgqg-q897?
Run the dependency tree command: 'inspect dependencies for wwbn/avideo'. This command lists direct and transitive dependencies in your build configuration so you can verify if a vulnerable version is resolved.
Machine-readable OSV JSON OSV v1.5 Schema
Normalized schema output
View Raw JSON 
{
  "schema_version" : "1.4.0",
  "id" : "GHSA-xj9w-cgqg-q897",
  "modified" : "2026-09-10T15:06:48Z",
  "published" : "2026-06-20T21:31:22Z",
  "withdrawn" : "2026-09-10T15:06:48Z",
  "aliases" : [ ],
  "summary" : "Duplicate Advisory: AVideo has Unauthenticated PGP Message Decryption via Public Endpoint",
  "details" : "### Duplicate Advisory\nThis advisory has been withdrawn because it is a duplicate of GHSA-5x2w-37xf-7962. This link is maintained to preserve external references.\n\n### Original Description\nAVideo through version 25.0 contains an authentication bypass vulnerability in the decryptMessage.json.php endpoint that allows unauthenticated users to decrypt PGP messages. Remote attackers can submit private keys, ciphertext, and passphrases to perform server-side decryption without credentials, exposing key material to logs and enabling resource exhaustion attacks.",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:L"
  }, {
    "type" : "CVSS_V4",
    "score" : "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:L/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "Packagist",
      "name" : "wwbn/avideo"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "last_affected" : "25.0"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "WEB",
    "url" : "https://github.com/WWBN/AVideo/security/advisories/GHSA-5x2w-37xf-7962"
  }, {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2026-56346"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/WWBN/AVideo"
  }, {
    "type" : "WEB",
    "url" : "https://www.vulncheck.com/advisories/avideo-unauthenticated-pgp-message-decryption-via-decryptmessage-json-php-endpoint"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-306" ],
    "severity" : "MODERATE",
    "github_reviewed" : true,
    "github_reviewed_at" : "2026-09-10T15:06:48Z",
    "nvd_published_at" : "2026-06-20T19:16:24Z"
  }
}