CVE-2026-69113

MEDIUM 5.4

Cap v0.3.1 Broken Access Control via video comment endpoint

CVSS Score

5.4

EPSS Score

0.0%

EPSS Percentile

0th

Cap v0.3.1 contains a broken access control vulnerability in the POST /api/video/comment endpoint that allows authenticated users to post comments on any private video without permission by supplying an arbitrary videoId in the request body. Attackers can inject comments into private video recordings belonging to other users, trigger comment notification emails to the video owner, and enumerate valid video IDs through response differences.

CWE	CWE-862
Vendor	capsoftware
Product	cap
Published	Aug 11, 2026

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CVSS v3 Breakdown

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

Attack Vector

Network

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

Low

Integrity

Low

Availability

None

Affected Versions

CapSoftware / Cap

0 ≤ 0.3.1

References

NVD ↗ CVE.org ↗ EPSS Data ↗

github.com: https://github.com/CapSoftware/Cap github.com: https://github.com/CapSoftware/Cap/issues/1982 github.com: https://github.com/CapSoftware/Cap/commit/1b812d88958f784ee66d2eace60e731624832c9d vulncheck.com: https://www.vulncheck.com/advisories/cap-broken-access-control-via-video-comment-endpoint

Credits

George Chen