CVE-2023-45316Network attack vector

CSRF via relative telemetry run path

Published Dec 12, 2023 · Updated May 24, 2025

CSRF in affected Mattermost Playbooks releases allows remote authenticated users to alter server data via a crafted telemetry URL. The telemetry-run route accepts a relative path as telem_run_id and resolves it to another API endpoint instead of constraining it to a telemetry identifier. Low-privileged access and user interaction are required; successful exploitation permits data modification or service interruption.

CVSS severity7.3
High
EPSS probability0.31%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
Coverage for this vulnerability

See if you're affected

Explore vulnerability checks for your environment with Hinoki.

Book a demo

Summary

What happened

CSRF in affected Mattermost Playbooks releases allows remote authenticated users to alter server data via a crafted telemetry URL. The telemetry-run route accepts a relative path as telem_run_id and resolves it to another API endpoint instead of constraining it to a telemetry identifier. Low-privileged access and user interaction are required; successful exploitation permits data modification or service interruption.

The record

CVE
CVE-2023-45316
Published
Dec 12, 2023
Updated
May 24, 2025
Vendor
Mattermost
Product
Mattermost
Classifications
CWE-352, CWE-22, T1204.001
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Dec 12, 2023CVE publishedPublication date reported by the CVE source.
  2. May 24, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=0 <=7.8.14
  2. Affected versionversion=0 <=8.1.5
  3. Affected versionversion=0 <=9.0.3
  4. Affected versionversion=0 <=9.1.2
  5. Affected versionversion=0 <=9.2.1

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Mattermost · Mattermostversion=0 <=7.8.14; version=0 <=8.1.5; version=0 <=9.0.3; version=0 <=9.1.2; version=0 <=9.2.1

Published CVSS scores

7.3MattermostCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:H/A:H
8.8NISTCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-352Cross-Site Request Forgery (CSRF)
CWE-22Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
T1204.001User Execution: Malicious Link

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

See the directory against your own environment.

Your stack

Check the software in your environment

Book a demo to see how Hinoki identifies affected software and validates exploitability in your environment.

Book a demo