What’s Vulnerable › Vulnerabilities

CVE-2025-30516: Unauthorized Notification Exposure in Mobile App Under Specific Conditions

• Severity: high (CVSS 7.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.3% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2025-04-14 · updated 2026-06-17
• Weakness: CWE-613

Description

Mattermost Mobile Apps versions <=2.25.0  fail to terminate sessions during logout under certain conditions (e.g. poor connectivity), allowing unauthorized users on shared devices to access sensitive notification content via continued mobile notifications

Affected products

• Mattermost Mobile: before 2.26.0 — fixed in 2.26.0

How to fix

Upgrade to a fixed version: Mattermost Mobile 2.26.0. Check the vendor advisory for mitigations.

References

• https://mattermost.com/security-updates

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