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CVE-2024-1887

15
FAUCET Score

CVE-2024-1887 describes a vulnerability in Mattermost where the platform fails to verify if compliance export is enabled when retrieving posts from public channels. This allows an unauthorized user, not a member of the public channel, to access these posts without the activity being recorded in the compliance export. The vulnerability has a CVSS score of 4.3 (Medium), indicating a low attack complexity and no impact on confidentiality or availability, but a low impact on integrity. There is currently no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
>= 0, <= 8.1.8CPE match
cpe:2.3:a:mattermost:mattermost:*:*:*:*:*:*:*:*
>= 0, <= 9.2.4CPE match
cpe:2.3:a:mattermost:mattermost:*:*:*:*:*:*:*:*
>= 0, <= 9.3.0CPE match
cpe:2.3:a:mattermost:mattermost:*:*:*:*:*:*:*:*
< 8.1.9CPE matchmatch criteria
cpe:2.3:a:mattermost:mattermost_server:*:*:*:*:*:*:*:*
>= 9.2.0, < 9.2.5CPE matchmatch criteria
cpe:2.3:a:mattermost:mattermost_server:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

4.3MEDIUM

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
LOW
Availability Impact
NONE
Exploitability Score
2.8
Impact Score
1.4
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.33%
Probability of exploitation in next 30 days
EPSS Percentile
25.6%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0033 is in the 34th percentile among its peer group of 21,977 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.1 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.0 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (3)

gopatch availablevia ghsa
Product: github.com/mattermost/mattermost/server/v8Fixed in: 9.3.1
gopatch availablevia ghsa
Product: github.com/mattermost/mattermost/server/v8Fixed in: 9.2.5
gopatch availablevia ghsa
Product: github.com/mattermost/mattermost/server/v8Fixed in: 8.1.9

Vendor Advisories (1)

goGHSA-fx48-xv6q-6gp3high

Mattermost post fetching without auditing in compliance export

Feb 29, 2024

References

mattermost.com / security-updates
Vendor Advisory