CVE-2017-18891
published 2020-06-19CVE-2017-18891: An issue was discovered in Mattermost Server before 4.2.0, 4.1.1, and 4.0.5. It allows Phishing because an error page can have a link.
PriorityP423medium6.1CVSS 3.1
AVNACLPRNUIRSCCLILAN
EPSS
0.69%
48.0th percentile
An issue was discovered in Mattermost Server before 4.2.0, 4.1.1, and 4.0.5. It allows Phishing because an error page can have a link.
Affected
9 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| github.com | mattermost_mattermost-server | >= 0 < 4.0.5+incompatible | 4.0.5+incompatible |
| github.com | mattermost_mattermost-server | >= 0 < 4.0.5 | 4.0.5 |
| github.com | mattermost_mattermost-server | >= 4.1.0 < 4.1.1 | 4.1.1 |
| github.com | mattermost_mattermost-server | >= 4.1.0+incompatible < 4.1.1+incompatible | 4.1.1+incompatible |
| github.com | mattermost_mattermost-server | >= 4.2.0-rc1 < 4.2.0 | 4.2.0 |
| github.com | mattermost_mattermost-server | >= 4.2.0-rc1+incompatible < 4.2.0+incompatible | 4.2.0+incompatible |
| mattermost | mattermost_server | < 4.0.5 | 4.0.5 |
| mattermost | mattermost_server | — | — |
| mattermost | mattermost_server | >= 4.1.0 < 4.1.1 | 4.1.1 |
CVSS provenance
nvdv3.16.1MEDIUMCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
nvdv2.05.8MEDIUMAV:N/AC:M/Au:N/C:P/I:P/A:N
Stop checking back — get the weekly exploitation signal.
Every Monday: what got weaponized or added to CISA KEV in the last seven days — each CVE cross-linked to its PoC, Nuclei template, and detection rule. Free, one email a week, unsubscribe in one click.
OSV
Mattermost Server does not safeguard against phishing via error page links in github.com/mattermost/mattermost-server
osv·2026-01-13
CVE-2017-18891 Mattermost Server does not safeguard against phishing via error page links in github.com/mattermost/mattermost-server
Mattermost Server does not safeguard against phishing via error page links in github.com/mattermost/mattermost-server
Mattermost Server does not safeguard against phishing via error page links in github.com/mattermost/mattermost-server
GHSA
Mattermost Server does not safeguard against phishing via error page links
ghsa·2022-05-24
CVE-2017-18891 [MEDIUM] Mattermost Server does not safeguard against phishing via error page links
Mattermost Server does not safeguard against phishing via error page links
An issue was discovered in Mattermost Server before 4.2.0, 4.1.1, and 4.0.5. It allows Phishing because an error page can have a link.
OSV
Mattermost Server does not safeguard against phishing via error page links
osv·2022-05-24
CVE-2017-18891 [MEDIUM] Mattermost Server does not safeguard against phishing via error page links
Mattermost Server does not safeguard against phishing via error page links
An issue was discovered in Mattermost Server before 4.2.0, 4.1.1, and 4.0.5. It allows Phishing because an error page can have a link.
No detection rules found.
No public exploits indexed.
No writeups or analysis indexed.
2020-06-19
Published