8.8high
CVE-2017-18903
Mattermost Server vulnerable to CSRF if CORS is enabled
Also known as GHSA-fcwg-45jh-5qhf, GO-2026-4305
Published 6 y ago · modified 4 mo ago · JSON
CVSS
8.8
v3.1 · NVD
CISA KEV
No
not known exploited
EPSS
0.4%
percentile 37%
Public exploits
0
none known
Summary
An issue was discovered in Mattermost Server before 4.0.0, 3.10.2, and 3.9.2. CSRF can occur if CORS is enabled.
Exploit prediction (EPSS)
0.43% probability of exploitation in the next 30 days, higher than 37% of all scored CVEs.
CVSS scores
| Assigned by | Version | Score | Vector |
|---|---|---|---|
| NVD | 3.1 | 8.8 | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H |
| NVD | 2.0 | 5.1 | AV:N/AC:H/Au:N/C:P/I:P/A:P |
| GitHub | 3.1 | 8.8 | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H |
Affected packages
| Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|
| go | github.com/mattermost/mattermost-server | <3.9.2 >=3.10.0-rc1, <3.10.2 <3.9.2+incompatible >=3.10.0+incompatible, <3.10.2+incompatible | 3.9.2 3.10.2 3.9.2+incompatible 3.10.2+incompatible |
Classification
- Weakness
- CWE-352 Cross-Site Request Forgery
References
- mattermost.com /security-updates/ · x_refsource_CONFIRM, x_transferred
- nvd.nist.gov /vuln/detail/CVE-2017-18903 · advisory
- github.com /mattermost/mattermost/commit/312269ad0bd166174f07f9df7391fce714601600 · web
- github.com /mattermost/mattermost/commit/4519b03d95e8bfe1b2f74094673ae1a2f39f6b47 · web
- github.com /mattermost/mattermost/commit/a18479df0940be8503c9b88993490741793eba9e · web
- github.com /mattermost/mattermost · package
- mattermost.com /security-updates · web
- github.com /advisories/GHSA-fcwg-45jh-5qhf · advisory
Sources
- CVE List: CVE-2017-18903
- GitHub Advisory: GHSA-fcwg-45jh-5qhf
- NVD: CVE-2017-18903
- OSV: GO-2026-4305
vulnwire keeps one entry per vulnerability: the CVE id wins, then GHSA; records that alias each other are merged. Machine-readable: JSON.