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CVE-2023-46701

Inaccessible Post Information Leak via Run Timeline IDOR

Medium6.5EPSS 0.43%
Published
Updated
Reserved
Assigned by
Mattermost

Description

Mattermost fails to perform authorization checks in the /plugins/playbooks/api/v0/runs/add-to-timeline-dialog endpoint of the Playbooks plugin allowing an attacker to get limited information about a post if they know the post ID

Timeline

  1. ID reserved

    By Mattermost

  2. · 7 days later

    Published

  3. · 8 months later

    Record updated

Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.

Scores

CVSS scores of CVE-2023-46701, by who scored it
Scored byCVSSScoreVector
MattermostCNA (assigner)3.1Medium6.5CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
NVDNVD · Modified3.1Medium5.3CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
EPSS (exploitation in 30 days)
0.43% · top 62% of all CVEs (7 Nov 2026)
Loading the EPSS history…

The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 6.5.

Weakness

Affected products

  • Mattermost · Mattermost

    • affected ≤ 8.1.5
    • affected ≤ 9.0.3
    • affected ≤ 9.1.2
    • affected ≤ 9.2.1
    • unaffected 9.2.2
    • unaffected 8.1.6
    • unaffected 9.0.4
    • unaffected 9.1.3

What to do

Solution: Update Mattermost Server to versions 8.1.6, 9.0.4, 9.1.3, 9.2.2 or higher.

References (1)

Sources

The same CVE in the primary databases and aggregators, to check against.

Badge for a README or a ticket

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Record last updated .