CVE-2026-87897
CVSS Score
4.6
EPSS Score
0.0%
EPSS Percentile
0th
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.
| CWE | CWE-918 |
| Vendor | nextcloud |
| Product | whiteboard |
| Published | Oct 27, 2026 |
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CVSS v3 Breakdown
CVSS:3.0/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:L/A:N Affected Versions
Nextcloud / whiteboard
1.0.0 < 1.0.0
Credits
alex-elttam (alex-elttam)