CVE-2024-47003: DoS via non-string message using permalink embed
Vulnerability summary
CVE-2024-47003 is a medium (CVSS 6.5) Uncontrolled Resource Consumption vulnerability in mattermost. EPSS estimates a 0.58% chance of exploitation in the next 30 days, higher than 47.5% of scored vulnerabilities.
Not severe (CVSS 3.1, network access); no exploitation reported by the 5 checked sources
Source freshness unavailable
How is this decided?Advisory lineage
Upstream 0 · Downstream 3 · Related 6Timeline
- 26-09-2024PublishedVulnerability first disclosed.
- 26-09-2024Last modifiedVulnerability information updated.
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.
CVSS metrics
5 scores · 4 sources · 2 versions- CVE.orgCNA3.1LowCVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:LDiffers
- OSV · GoEcosystem advisory · calculated5.4MediumCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:LDiffers
- OSV · ChainguardEcosystem advisory · calculated3.1LowCVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:LDiffers
EPSS trend
Probability
0.58%
Chance of exploitation in the next 30 days
Percentile
48%
Versus all other CVEs
30-day change
No change 0.00 pp
From 0.58% on 04-10-2026
Known exploited
Compare KEV catalogsNot in the CISA KEV catalog.
Not in the ENISA CNW catalog.
Not in the CIRCL catalog.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Known conditions: network-reachable, low-privilege account, no user interaction (CVSS vector). Other conditions: not stated in public data.
Chainguard2 products
- mattermost-fips-10.5All versions (No fix recorded)
- mattermost-fips-10.5-compatAll versions (No fix recorded)
Github.com/mattermost/mattermost-server2 products
- v5All versions (No fix recorded)
- v6All versions (No fix recorded)
Mattermost2 products
- mattermost9.11.0 | ≥ 9.5.0, ≤ 9.5.8
- mattermost_serverEOL≥ 9.5.0, < 9.5.9 | 9.11.0 | 9.11.0:rc1 | 9.11.0:rc2 | 9.11.0:rc3
Github.com/mattermost1 product
- mattermost-serverAll versions (No fix recorded)
Github.com/mattermost/mattermost/server1 product
- v8< 8.0.0-20240806094731-69a8b3df0f9f
5 vendors · 8 products