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Vulnerability details: VCID-fb41-e4kz-bkhz
Vulnerability ID VCID-fb41-e4kz-bkhz
Aliases CVE-2017-12849
GHSA-fwhr-g5r4-xgxf
Summary Silverstripe CMS User Enumeration Response discrepancy in the login and password reset forms in SilverStripe CMS before 3.5.5 and 3.6.x before 3.6.1 allows remote attackers to enumerate users via timing attacks.
Status Published
Exploitability None
Weighted Severity None
Risk None
Affected and Fixed Packages Package Details
Weaknesses (3)
CWE-200 Exposure of Sensitive Information to an Unauthorized Actor
CWE-1035 OWASP Top Ten 2017 Category A9 - Using Components with Known Vulnerabilities
CWE-937 OWASP Top Ten 2013 Category A9 - Using Components with Known Vulnerabilities
System Score Found at
epss 0.00392 https://api.first.org/data/v1/epss?cve=CVE-2017-12849
cvssv3.1 5.3 https://nvd.nist.gov/vuln/detail/CVE-2017-12849
generic_textual MODERATE https://nvd.nist.gov/vuln/detail/CVE-2017-12849
cvssv3.1 5.3 https://www.silverstripe.org/download/security-releases/ss-2017-005
generic_textual MODERATE https://www.silverstripe.org/download/security-releases/ss-2017-005
Reference id Reference type URL
https://api.first.org/data/v1/epss?cve=CVE-2017-12849
https://nvd.nist.gov/vuln/detail/CVE-2017-12849
https://www.silverstripe.org/download/security-releases/ss-2017-005
GHSA-fwhr-g5r4-xgxf https://github.com/advisories/GHSA-fwhr-g5r4-xgxf
No exploits are available.
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N Found at https://nvd.nist.gov/vuln/detail/CVE-2017-12849
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N Found at https://www.silverstripe.org/download/security-releases/ss-2017-005
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Exploit Prediction Scoring System (EPSS)
Percentile 0.60454
EPSS Score 0.00392
Published At May 29, 2026, 12:55 p.m.
Date Actor Action Source VulnerableCode Version
2026-05-29T09:44:13.132283+00:00 GithubOSV Importer Import https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2022/05/GHSA-fwhr-g5r4-xgxf/GHSA-fwhr-g5r4-xgxf.json 38.6.0