How severe is CVE-2024-47003?

CVE-2024-47003 has a CVSS 3.x base score of 3.1, rated low severity. It is exploitable over network with high attack complexity, requires low privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability low.

Is CVE-2024-47003 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (43rd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2024-47003?

CVE-2024-47003 primarily affects Mattermost Mattermost Server. In total, 5 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2024-47003?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

Does CVE-2024-47003 have an EU (EUVD) identifier?

Yes. CVE-2024-47003 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2024-2720.

When was CVE-2024-47003 published?

CVE-2024-47003 was published on 2024-09-26 and last updated on 2026-06-17.

CVE-2024-47003

CVE-2024-47003 is a low-severity vulnerability in Mattermost Mattermost Server with a CVSS 3.x base score of 3.1. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-400.

Key facts

Severity: Low (CVSS 3.x base score 3.1)
EPSS exploit prediction: 1% (43rd percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2024-2720
Weakness: CWE-400
Affected product: Mattermost Mattermost Server
Published: 2024-09-26
Last modified: 2026-06-17

Description

Mattermost versions 9.11.x <= 9.11.0 and 9.5.x <= 9.5.8 fail to validate that the message of the permalink post is a string, which allows an attacker to send a non-string value as the message of a permalink post and crash the frontend.

Frequently asked questions

What is CVE-2024-47003?: Mattermost versions 9.11.x <= 9.11.0 and 9.5.x <= 9.5.8 fail to validate that the message of the permalink post is a string, which allows an attacker to send a non-string value as the message of a permalink post and crash the frontend.
How severe is CVE-2024-47003?: CVE-2024-47003 has a CVSS 3.x base score of 3.1, rated low severity. It is exploitable over network with high attack complexity, requires low privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability low.
Is CVE-2024-47003 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (43rd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2024-47003?: CVE-2024-47003 primarily affects Mattermost Mattermost Server. In total, 5 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2024-47003?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2024-47003 have an EU (EUVD) identifier?: Yes. CVE-2024-47003 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2024-2720.
When was CVE-2024-47003 published?: CVE-2024-47003 was published on 2024-09-26 and last updated on 2026-06-17.

References

https://mattermost.com/security-updates

Affected products (5)

cpe:2.3:a:mattermost:mattermost_server:*:*:*:*:*:*:*:*
cpe:2.3:a:mattermost:mattermost_server:9.11.0:-:*:*:*:*:*:*
cpe:2.3:a:mattermost:mattermost_server:9.11.0:rc1:*:*:*:*:*:*
cpe:2.3:a:mattermost:mattermost_server:9.11.0:rc2:*:*:*:*:*:*
cpe:2.3:a:mattermost:mattermost_server:9.11.0:rc3:*:*:*:*:*:*

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