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Security Advisories

CVE-2023-40703

NVD

https://nvd.nist.gov/vuln/detail/CVE-2023-40703

Severity

4.3

Medium

CVSS V3

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Summary

Denial of Service via specially crafted block fields in Mattermost Boards

Description

Mattermost fails to properly limit the characters allowed in different fields of a block in Mattermost Boards allowing a attacker to consume excessive resources, possibly leading to Denial of Service, by patching the field of a block using a specially crafted string. 

References

  • https://nvd.nist.gov/vuln/detail/CVE-2023-40703
  • https://github.com/advisories/GHSA-c37r-v8jx-7cv2
  • https://mattermost.com/security-updates
  • https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/40xxx/CVE-2023-40703.json

Affected packages

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