High severity8.8NVD Advisory· Published Jun 19, 2020· Updated Jun 17, 2026
CVE-2017-18903
CVE-2017-18903
Description
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.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected packages
Versions sourced from the GitHub Security Advisory.
| Package | Affected versions | Patched versions |
|---|---|---|
github.com/mattermost/mattermost-serverGo | < 3.9.2 | 3.9.2 |
github.com/mattermost/mattermost-serverGo | >= 3.10.0-rc1, < 3.10.2 | 3.10.2 |
Affected products
5- osv-coords3 versionspkg:rpm/opensuse/govulncheck-vulndb&distro=openSUSE%20Leap%2016.0pkg:rpm/opensuse/govulncheck-vulndb&distro=openSUSE%20Leap%2015.6pkg:golang/github.com/mattermost/mattermost-server
< 0.0.20260723T184607-160000.1.1+ 2 more
- (no CPE)range: < 0.0.20260723T184607-160000.1.1
- (no CPE)range: < 0.0.20260226T182644-150000.1.149.1
- (no CPE)range: < 3.9.2
- Mattermost/Serverdescription
Patches
Vulnerability mechanics
References
7- github.com/advisories/GHSA-fcwg-45jh-5qhfghsaADVISORY
- mattermost.com/security-updates/nvdVendor Advisory
- nvd.nist.gov/vuln/detail/CVE-2017-18903ghsaADVISORY
- github.com/mattermost/mattermost/commit/312269ad0bd166174f07f9df7391fce714601600ghsaWEB
- github.com/mattermost/mattermost/commit/4519b03d95e8bfe1b2f74094673ae1a2f39f6b47ghsaWEB
- github.com/mattermost/mattermost/commit/a18479df0940be8503c9b88993490741793eba9eghsaWEB
- mattermost.com/security-updatesghsaWEB
News mentions
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