CVE-2023-2787
MEDIUMCVSS 6.5/10EPSS 0.54%
Last modified
CVE-2023-2787 is a medium-severity vulnerability rated 6.5/10 on the CVSS scale. Mattermost fails to check channel membership when accessing message threads, allowing an attacker to access arbitrary posts by using the message threads API. . EPSS estimates a 0.54% chance of exploitation in the next 30 days.
Description
Mattermost fails to check channel membership when accessing message threads, allowing an attacker to access arbitrary posts by using the message threads API.
Metrics
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Mattermost | Mattermost | >= 7.1.0, <= 7.1.9 |
| Mattermost | Mattermost | >= 7.8.0, <= 7.8.4 |
| Mattermost | Mattermost | >= 7.9.0, <= 7.9.3 |
| Mattermost | Mattermost | 7.10.0 |
References
- https://mattermost.com/security-updates/Vendor Advisory
- https://mattermost.com/security-updates/Vendor Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
What is CVE-2023-2787?
Mattermost fails to check channel membership when accessing message threads, allowing an attacker to access arbitrary posts by using the message threads API.
How severe is CVE-2023-2787?
CVE-2023-2787 has a CVSS score of 6.5/10 (MEDIUM severity). The EPSS model estimates a 0.54% probability of exploitation in the next 30 days.
How do I fix CVE-2023-2787?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.
Are you affected by CVE-2023-2787?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST