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Vulnerability details: VCID-6sgh-v5u7-w3h9
Vulnerability ID VCID-6sgh-v5u7-w3h9
Aliases CVE-2017-7540
GHSA-5vx5-9q73-wgp4
Summary Safe mode bypassing Safemode is vulnerable to bypassing safe mode limitations via special Ruby syntax. This can lead to deletion of objects for which the user does not have delete-permissions or possibly to privilege escalation.
Status Published
Exploitability 0.5
Weighted Severity 9.0
Risk 4.5
Affected and Fixed Packages Package Details
Weaknesses (3)
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
CWE-184 Incomplete List of Disallowed Inputs
System Score Found at
cvssv3 7.5 https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2017-7540.json
epss 0.00289 https://api.first.org/data/v1/epss?cve=CVE-2017-7540
epss 0.00289 https://api.first.org/data/v1/epss?cve=CVE-2017-7540
epss 0.00289 https://api.first.org/data/v1/epss?cve=CVE-2017-7540
epss 0.00289 https://api.first.org/data/v1/epss?cve=CVE-2017-7540
epss 0.00289 https://api.first.org/data/v1/epss?cve=CVE-2017-7540
epss 0.00289 https://api.first.org/data/v1/epss?cve=CVE-2017-7540
epss 0.00289 https://api.first.org/data/v1/epss?cve=CVE-2017-7540
epss 0.00289 https://api.first.org/data/v1/epss?cve=CVE-2017-7540
epss 0.00289 https://api.first.org/data/v1/epss?cve=CVE-2017-7540
cvssv3.1_qr CRITICAL https://github.com/advisories/GHSA-5vx5-9q73-wgp4
cvssv3.1 9.8 https://github.com/rubysec/ruby-advisory-db/blob/master/gems/safemode/CVE-2017-7540.yml
generic_textual CRITICAL https://github.com/rubysec/ruby-advisory-db/blob/master/gems/safemode/CVE-2017-7540.yml
cvssv3.1 9.8 https://github.com/svenfuchs/safemode
generic_textual CRITICAL https://github.com/svenfuchs/safemode
cvssv3.1 9.8 https://github.com/svenfuchs/safemode/pull/23
generic_textual CRITICAL https://github.com/svenfuchs/safemode/pull/23
cvssv3 9.8 https://nvd.nist.gov/vuln/detail/CVE-2017-7540
cvssv3.1 9.8 https://nvd.nist.gov/vuln/detail/CVE-2017-7540
generic_textual CRITICAL https://nvd.nist.gov/vuln/detail/CVE-2017-7540
Reference id Reference type URL
https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2017-7540.json
https://api.first.org/data/v1/epss?cve=CVE-2017-7540
https://github.com/rubysec/ruby-advisory-db/blob/master/gems/safemode/CVE-2017-7540.yml
https://github.com/svenfuchs/safemode
https://github.com/svenfuchs/safemode/pull/23
https://nvd.nist.gov/vuln/detail/CVE-2017-7540
1473243 https://bugzilla.redhat.com/show_bug.cgi?id=1473243
GHSA-5vx5-9q73-wgp4 https://github.com/advisories/GHSA-5vx5-9q73-wgp4
No exploits are available.
Vector: CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H Found at https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2017-7540.json
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:H/I:H/A:H Found at https://github.com/rubysec/ruby-advisory-db/blob/master/gems/safemode/CVE-2017-7540.yml
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:H/I:H/A:H Found at https://github.com/svenfuchs/safemode
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:H/I:H/A:H Found at https://github.com/svenfuchs/safemode/pull/23
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:H/I:H/A:H Found at https://nvd.nist.gov/vuln/detail/CVE-2017-7540
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 0.52286
EPSS Score 0.00289
Published At April 1, 2026, 12:55 p.m.
Date Actor Action Source VulnerableCode Version
2026-04-01T12:47:17.314624+00:00 GitLab Importer Import https://gitlab.com/gitlab-org/advisories-community/-/blob/main/gem/safemode/CVE-2017-7540.yml 38.0.0