CVE-2026-43873: CWE-209: Generation of Error Message Containing Sensitive Information in WWBN AVideo
CVE-2026-43873 is a vulnerability in WWBN AVideo versions up to 29. 0 where an unauthenticated request to cloneClient. json. php leaks a sensitive CloneSite shared secret in the HTTP response. This secret is used to authenticate to remote clone servers, enabling attackers to impersonate victims and trigger a full database dump to a publicly accessible directory. The vulnerability arises from error messages that expose this secret. A fix has been committed but no official patch or advisory is currently confirmed.
AI Analysis
Technical Summary
WWBN AVideo (<=29.0) contains a CWE-209 vulnerability where the CloneSite shared secret (myKey) is echoed in error messages on unauthenticated requests to plugin/CloneSite/cloneClient.json.php. This secret is derived as md5(systemRootPath + salt) and is used to authenticate federation or backup cloneSiteURL requests. Disclosure of this key allows attackers to impersonate the victim on remote clone servers and cause a full mysqldump of the remote database to be saved publicly, exposing sensitive data. A code commit (e6566f56a28f4556b2a0a09d03717a719dcb49da) reportedly fixes this issue, but no official patch or vendor advisory is provided in the data.
Potential Impact
The vulnerability allows unauthenticated attackers to obtain a sensitive authentication secret from error messages, enabling them to impersonate the victim on remote clone servers. This leads to unauthorized database dumps being publicly exposed, risking significant data leakage. The CVSS score of 7.5 reflects high confidentiality impact with no integrity or availability impact.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. A code commit addressing the issue exists, but no official patch or advisory is provided. Until an official fix is available, restrict access to cloneClient.json.php and monitor for suspicious requests. Avoid exposing error messages containing sensitive information.
CVE-2026-43873: CWE-209: Generation of Error Message Containing Sensitive Information in WWBN AVideo
Description
CVE-2026-43873 is a vulnerability in WWBN AVideo versions up to 29. 0 where an unauthenticated request to cloneClient. json. php leaks a sensitive CloneSite shared secret in the HTTP response. This secret is used to authenticate to remote clone servers, enabling attackers to impersonate victims and trigger a full database dump to a publicly accessible directory. The vulnerability arises from error messages that expose this secret. A fix has been committed but no official patch or advisory is currently confirmed.
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
WWBN AVideo (<=29.0) contains a CWE-209 vulnerability where the CloneSite shared secret (myKey) is echoed in error messages on unauthenticated requests to plugin/CloneSite/cloneClient.json.php. This secret is derived as md5(systemRootPath + salt) and is used to authenticate federation or backup cloneSiteURL requests. Disclosure of this key allows attackers to impersonate the victim on remote clone servers and cause a full mysqldump of the remote database to be saved publicly, exposing sensitive data. A code commit (e6566f56a28f4556b2a0a09d03717a719dcb49da) reportedly fixes this issue, but no official patch or vendor advisory is provided in the data.
Potential Impact
The vulnerability allows unauthenticated attackers to obtain a sensitive authentication secret from error messages, enabling them to impersonate the victim on remote clone servers. This leads to unauthorized database dumps being publicly exposed, risking significant data leakage. The CVSS score of 7.5 reflects high confidentiality impact with no integrity or availability impact.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. A code commit addressing the issue exists, but no official patch or advisory is provided. Until an official fix is available, restrict access to cloneClient.json.php and monitor for suspicious requests. Avoid exposing error messages containing sensitive information.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- GitHub_M
- Date Reserved
- 2026-05-04T15:17:09.329Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6a028746cbff5d86108b50ec
Added to database: 5/12/2026, 1:49:58 AM
Last enriched: 5/12/2026, 1:53:26 AM
Last updated: 5/12/2026, 3:48:31 AM
Views: 2
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