4.3

CVE-2023-2783: mattermost Missing Authorization

CVSS: 4.3v3.1MediumModified
AliasesGHSA-455c-vqrf-mghr
Published 16-06-2023Last modified 06-12-2024
Open JSON

Vulnerability summary

CVE-2023-2783 is a medium (CVSS 4.3) Missing Authorization vulnerability in mattermost. EPSS estimates a 0.44% chance of exploitation in the next 30 days, higher than 36.6% of scored vulnerabilities.

Overall risk
17/100
0100
Low · default modelHow is this calculated?
CVSS score
4.3/10
010
Medium · v3.1 (CVE.org)
EPSS score
0.44%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Timeline

  1. 16-06-2023
    PublishedVulnerability first disclosed.
  2. 06-12-2024
    Last modifiedVulnerability information updated.

Description

Mattermost Apps Framework fails to verify that a secret provided in the incoming webhook request allowing an attacker to modify the contents of the post sent by the Apps.

CVSS metrics

3 scores · 3 sources · 1 version

EPSS trend

Probability

0.44%

Chance of exploitation in the next 30 days

Percentile

37%

Versus all other CVEs

30-day change

0.00 pp

From 0.44% on 20-09-2026

20-09-202620-10-2026
EPSS score
0.44%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Mattermost2 products
Github.com/mattermost/mattermost-server1 product
  • v6≥ 7.10.0, < 7.10.1 | ≥ 7.9.0, < 7.9.4 | ≥ 6.0.0, < 7.8.5 | < 6.0.0-20230511130429-1629a6ca7fed

2 vendors · 3 products

References

3 links