6.1med
CVE-2017-18904
Mattermost Server vulnerable to XSS via an uploaded file
Also known as GHSA-8pff-p3gx-w4jf, GO-2026-4302
Published 6 y ago · modified 4 mo ago · JSON
CVSS
6.1
v3.1 · NVD
CISA KEV
No
not known exploited
EPSS
0.7%
percentile 53%
Public exploits
0
none known
Summary
An issue was discovered in Mattermost Server before 4.0.0, 3.10.2, and 3.9.2. It allows XSS via an uploaded file.
Exploit prediction (EPSS)
0.69% probability of exploitation in the next 30 days, higher than 53% of all scored CVEs.
CVSS scores
| Assigned by | Version | Score | Vector |
|---|---|---|---|
| NVD | 3.1 | 6.1 | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N |
| NVD | 2.0 | 4.3 | AV:N/AC:M/Au:N/C:N/I:P/A:N |
| GitHub | 3.1 | 6.1 | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N |
Affected packages
| Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|
| go | github.com/mattermost/mattermost-server | <3.9.2 >=3.10.0, <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-79 Improper Neutralization of Input During Web Page Generation
References
- mattermost.com /security-updates/ · x_refsource_CONFIRM, x_transferred
- nvd.nist.gov /vuln/detail/CVE-2017-18904 · advisory
- github.com /mattermost/mattermost/commit/6a2754376c8c8270be5e11e3fdab589659d0cc8d · web
- github.com /mattermost/mattermost/commit/bde06a7bc3a03a56da224c1ffcd8bffb0af8071b · web
- github.com /mattermost/mattermost/commit/f06c5bef4d78966c60b153bbec6eea4ec0be9e68 · web
- github.com /mattermost/mattermost · package
- mattermost.com /security-updates · web
- github.com /advisories/GHSA-8pff-p3gx-w4jf · advisory
Sources
- CVE List: CVE-2017-18904
- GitHub Advisory: GHSA-8pff-p3gx-w4jf
- NVD: CVE-2017-18904
- OSV: GO-2026-4302
vulnwire keeps one entry per vulnerability: the CVE id wins, then GHSA; records that alias each other are merged. Machine-readable: JSON.