CVE-2026-48929

HIGH
MEDIUM Priority: 0.05 BB Relevance: 75/100
Published: 2026-06-17 Modified: 2026-10-24 First seen: 2026-10-29 Status: active

Attack Surface

Network Low Complexity No Auth No Interaction

CVSS Vector Breakdown

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

Description

Rocket.Chat in versions <8.5.1, <8.4.4, <8.3.6, <8.2.6, <8.1.6, <8.0.7, <7.13.9, and <7.10.13 is vulnerable to unauthenticated file deletion. The deleteFileMessage Meteor method permanently deletes any uploaded file by ID without requiring authentication. When called via an unauthenticated DDP WebSocket connection, Meteor.userId() returns null, causing the authorization check to be skipped. Execution falls through to FileUpload.getStore('Uploads').deleteById(fileID), which removes the file from storage and database unconditionally. File IDs are discoverable from public channel message payloads and download URLs.

Weakness Classification (1)

Affected Software (1)

VendorProductVersion
rocket.chat rocket.chat < 7.10.13

References & Advisories (2)

https://github.com/RocketChat/Rocket.Chat/pull/40889/
Issue Tracking Patch Third Party Advisory

Bug Bounty Relevance

75 / 100
✓ Network accessible
✓ No authentication
✓ Low complexity
✓ No user interaction

CVSS Score

7.5 / 10.0 v3.0
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

EPSS — Exploitation Probability

0.72%
Raw Score 0.007230
Percentile 53.9%
Date 2026-10-29

EPSS Trend

2026-10-29
0.00723
2026-10-28
0.00723

Intelligence Sources

nvd ref →