Staging Environment: Content and features may be unstable or change without notice.
Advisory details: vulnrichment / CVE-2026-43873
Advisory ID vulnrichment/CVE-2026-43873
Aliases
Summary WWBN AVideo is an open source video platform. In versions up to and including 29.0, plugin/CloneSite/cloneClient.json.php echoes the local CloneSite shared secret ($objClone->myKey, a constant md5($global['systemRootPath'] . $global['salt'])) into the HTTP response body on every unauthenticated request. The unauthenticated error branch was intended to reject non-admin callers without a valid key, but the rejection message interpolates the expected key before die(). When the victim has CloneSite configured with a remote cloneSiteURL (standard federation/backup setup), the leaked myKey is exactly the credential that authenticates the victim to that remote server's cloneServer.json.php, allowing the attacker to impersonate the victim and trigger a full mysqldump of the remote's database to the remote's public videos/clones/ directory Commit e6566f56a28f4556b2a0a09d03717a719dcb49da contains an updated fix.
Status Published
Exploitability 0.5
Weighted Severity 0.0
Risk
Affected and Fixed Packages Package Details
Introduced and Fixed Package Commit Patches Package Commit Patches Details
Weaknesses (1)
CWE-209 Generation of Error Message Containing Sensitive Information
System Score Found at
cvssv3.1 7.5
ssvc Track
Reference id Reference type URL
e6566f56a28f4556b2a0a09d03717a719dcb49da Other https://github.com/WWBN/AVideo/commit/e6566f56a28f4556b2a0a09d03717a719dcb49da
GHSA-qm9p-p5pw-jrx2 Other https://github.com/WWBN/AVideo/security/advisories/GHSA-qm9p-p5pw-jrx2
No exploits are available.

No EPSS data available for this advisory.

Patch URL
There are no known patches.
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N Found at None
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: SSVCv2/E:P/A:Y/T:P/P:M/B:A/M:M/D:T/2026-05-12T12:56:05Z/ Found at None

Vector: SSVCv2/E:P/A:Y/T:P/P:M/B:A/M:M/D:T/2026-05-12T12:56:05Z/

Decision: Track

Source URL: https://github.com/cisagov/vulnrichment/blob/develop/2026/43xxx/CVE-2026-43873.json

Source Advisory: vulnrichment/CVE-2026-43873

View SSVC decision tree 
[{'Exploitation': 'poc'},
 {'Automatable': 'yes'},
 {'Technical Impact': 'partial'},
 {'Mission Prevalence': 'minimal'},
 {'Public Well-being Impact': 'material'},
 {'Mission & Well-being': 'medium'}]