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Description

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.

PUBLISHED Reserved 2026-05-04 | Published 2026-05-11 | Updated 2026-05-11 | Assigner GitHub_M




HIGH: 7.5CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Problem types

CWE-209: Generation of Error Message Containing Sensitive Information

Product status

<= 29.0
affected

References

github.com/...AVideo/security/advisories/GHSA-qm9p-p5pw-jrx2

github.com/...ommit/e6566f56a28f4556b2a0a09d03717a719dcb49da

cve.org (CVE-2026-43873)

nvd.nist.gov (CVE-2026-43873)

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