CVE-2026-87897
whiteboard: A SSRF vulnerability found that enables access to internal Chrome Devtools Protocol APIs that can leak the JWT authentication token for another user. A low privileged attacker could continually exploi
Nextcloud whiteboardApplications & CMS
CVSS
4.6MediumExploitationNo known exploitationNot in CISA KEV, which does not prove it is unexploitedCISA KEV
Exploit odds (EPSS)No scoreNo FIRST EPSS score in this snapshot yet
What fixes it
- 1.0.0whiteboardCVE List
A fixed version on one release line is not the upgrade target for every line. Check your exact version and any vendor backports.
Description
A SSRF vulnerability found that enables access to internal Chrome Devtools Protocol APIs that can leak the JWT authentication token for another user. A low privileged attacker could continually exploit this vulnerability to leak the JWT authentication token for another user when they start a recording, which then enables the attacker read/write access to the victim's Whiteboard.
Text from CVE List
Affected versions 1
- whiteboardaffected: 1.0.0 before 1.0.0CVE List