6.5

CVE-2023-2831: mattermost Uncontrolled Resource Consumption

CVSS: 6.5v3.1MediumModified
Published 16-06-2023Last modified 06-12-2024
Open JSON

Vulnerability summary

CVE-2023-2831 is a medium (CVSS 6.5) Uncontrolled Resource Consumption vulnerability in mattermost. EPSS estimates a 0.68% chance of exploitation in the next 30 days, higher than 51.4% of scored vulnerabilities.

Overall risk
26/100
0100
Medium · default modelHow is this calculated?
CVSS score
6.5/10
010
Medium · v3.1 (NVD)
EPSS score
0.68%
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 fails to unescape Markdown strings in a memory-efficient way, allowing an attacker to cause a Denial of Service by sending a message containing a large number of escaped characters.

CVSS metrics

2 scores · 2 sources · 1 version

EPSS trend

Probability

0.68%

Chance of exploitation in the next 30 days

Percentile

51%

Versus all other CVEs

30-day change

0.00 pp

From 0.68% on 20-09-2026

20-09-202620-10-2026
EPSS score
0.68%

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

Mattermost1 product
  • mattermost≤ 7.1.9 | ≤ 7.8.4 | ≤ 7.9.3 | ≥ 7.1.0, ≤ 7.1.9 | ≥ 7.8.0, ≤ 7.8.4 | ≥ 7.9.0, ≤ 7.9.3 | 7.10.0

1 vendor · 1 product

References

1 links