CVE-2025-9072 (GCVE-0-2025-9072)
Vulnerability from cvelistv5 – Published: 2025-09-15 10:28 – Updated: 2025-09-15 12:06
VLAI?
Title
One-Click Mattermost Account Takeover via Poisoned RelayState SAML Parameter
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.
Severity ?
7.6 (High)
CWE
- CWE-601 - CWE‑601: URL Redirection to Untrusted Site (“Open Redirect”)
Assigner
References
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Mattermost | Mattermost |
Affected:
10.10.0 , ≤ 10.10.1
(semver)
Affected: 10.5.0 , ≤ 10.5.9 (semver) Affected: 10.9.0 , ≤ 10.9.4 (semver) Unaffected: 10.11.0 Unaffected: 10.10.2 Unaffected: 10.5.10 Unaffected: 10.9.5 |
Credits
DoyenSec
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Sightings
| Author | Source | Type | Date |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
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