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Fencer Vulns
medium 4.3

CVE-2023-45847 json

Playbook Plugin Crash via Run Checklist

published 2023-12-12 2 y ago modified 2026-06-17 4 mo ago also BIT-mattermost-2023-45847 , EUVD-2023-50117

cvss
4.3
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.6%
EPSS 0.6% chance of exploitation in 30 days, percentile 51%
public exploits
0
none known

Summary

Mattermost fails to to check the length when setting the title in a run checklist in Playbooks, allowing an attacker to send a specially crafted request and crash the Playbooks plugin

Patch / fix

  • bitnami mattermost 7.8.15, 8.1.6, 9.0.4, 9.1.3, 9.2.2
  • Mattermost Mattermost 8.1.6, 9.0.4, 9.1.3, 9.2.2

CISA SSVC

Exploitation
none
Automatable
no
Technical impact
partial
Assessed
23 mo ago

Exploit prediction

0.65% chance of exploitation in the next 30 days, higher than 51% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
CNA 3.1 4.3 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L
NVD 3.1 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
OSV 3.1 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Affected packages

ecosystem package affected fixed in
bitnami mattermost
<7.8.15
>=8.0.0, <8.1.6
>=9.0.0, <9.0.4
>=9.1.1, <9.1.3
>=9.2.0, <9.2.2
7.8.15
8.1.6
9.0.4
9.1.3
9.2.2

Affected products

  • Mattermost Mattermost

Classification

Weakness
  • CWE-400 Uncontrolled Resource Consumption

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.