CVE-2025-9072

Summary

Mattermost versions 10.10.x <= 10.10.1, 10.5.x <= 10.5.9, 10.9.x <= 10.9.4 fail to validate the redirect_to parameter, allowing an attacker to craft a malicious link that, once a user authenticates with their SAML provider, could post the user’s cookies to an attacker-controlled URL.

Affected Software

VendorProductVersion RangeStatus
MattermostMattermost10.10.0 <= 10.10.1affected
MattermostMattermost10.5.0 <= 10.5.9affected
MattermostMattermost10.9.0 <= 10.9.4affected
MattermostMattermost10.11.0unaffected
MattermostMattermost10.10.2unaffected
MattermostMattermost10.5.10unaffected
MattermostMattermost10.9.5unaffected

Weaknesses

  • CWE-601: CWE‑601: URL Redirection to Untrusted Site (“Open Redirect”)

ADP Enrichment

CISA ADP Vulnrichment

  • SSVC:
  • Exploitation: none
    • Automatable: no
    • Technical Impact: total

References