Dashboard / CVE-2026-84473

CVE-2026-84473

CRITICAL 1 PoC
INFO Priority: 0.05 BB Relevance: 90/100
Published: 2026-11-06 Modified: 2026-11-12 First seen: 2026-11-06 Status: active

Attack Surface

Network Low Complexity No Auth No Interaction Conf. Impact Integ. Impact

CVSS Vector Breakdown

AV: Network
AC: Low
PR: None
UI: None
S: Unchanged
C: High
I: High
A: High

Description

Authentication Bypass / Missing Brute-Force Protection in remote.php/webdav/ in ownCloud ownCloud server 10.16.3 allows an unauthenticated remote attacker to perform unlimited online password guessing against WebDAV accounts via repeated HTTP Basic Authentication requests to the WebDAV endpoint.

Weakness Classification (2)

Affected Software (2)

VendorProductVersion
Kiteworks ownCloud 10.16.3 < 11.1.0
Kiteworks ownCloud 10.16.3 < 11.1.0

References & Advisories (1)

Proof of Concept (1)

—
https://github.com/KOBUKOVUI/CVE-2026-84473
nomi-sec

Bug Bounty Relevance

90 / 100
✓ Network accessible
✓ No authentication
✓ Low complexity
✓ No user interaction
✓ PoC available (1)

CVSS Score

9.8 / 10.0 v3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS — Exploitation Probability

0.52%
Raw Score 0.005220
Percentile 44.9%
Date 2026-11-13

EPSS Trend

2026-11-13
0.00522
2026-11-12
0.00522
2026-11-10
0.00339
2026-11-09
0.00339
2026-11-08
0.00339
2026-11-07
0.00339

Intelligence Sources

mitre ref →
nvd ref →

External Links