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Vulnerability details: VCID-yxpn-64jb-tkc8
Vulnerability ID VCID-yxpn-64jb-tkc8
Aliases CVE-2018-18307
GHSA-7mj4-2984-955f
Summary
Status Published
Exploitability 0.5
Weighted Severity 6.2
Risk 3.1
Affected and Fixed Packages Package Details
Weaknesses (3)
CWE-79 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
CWE-937 OWASP Top Ten 2013 Category A9 - Using Components with Known Vulnerabilities
CWE-1035 OWASP Top Ten 2017 Category A9 - Using Components with Known Vulnerabilities
System Score Found at
cvssv3.1 5.9 http://packetstormsecurity.com/files/149787/Alchemy-CMS-4.1-Stable-Cross-Site-Scripting.html
generic_textual MODERATE http://packetstormsecurity.com/files/149787/Alchemy-CMS-4.1-Stable-Cross-Site-Scripting.html
epss 0.00342 https://api.first.org/data/v1/epss?cve=CVE-2018-18307
epss 0.00342 https://api.first.org/data/v1/epss?cve=CVE-2018-18307
epss 0.00342 https://api.first.org/data/v1/epss?cve=CVE-2018-18307
epss 0.00342 https://api.first.org/data/v1/epss?cve=CVE-2018-18307
cvssv3.1_qr MODERATE https://github.com/advisories/GHSA-7mj4-2984-955f
cvssv3.1 5.9 https://github.com/AlchemyCMS/alchemy_cms
generic_textual MODERATE https://github.com/AlchemyCMS/alchemy_cms
cvssv3.1 5.9 https://github.com/AlchemyCMS/alchemy_cms/blob/4.1-stable/app/controllers/alchemy/admin/base_controller.rb#L15
generic_textual MODERATE https://github.com/AlchemyCMS/alchemy_cms/blob/4.1-stable/app/controllers/alchemy/admin/base_controller.rb#L15
cvssv3.1 5.9 https://github.com/AlchemyCMS/alchemy_cms/blob/4.1-stable/app/controllers/alchemy/admin/pictures_controller.rb#L5
generic_textual MODERATE https://github.com/AlchemyCMS/alchemy_cms/blob/4.1-stable/app/controllers/alchemy/admin/pictures_controller.rb#L5
cvssv3.1 5.9 https://github.com/AlchemyCMS/alchemy_cms/blob/4.1-stable/app/controllers/alchemy/admin/resources_controller.rb#L21
generic_textual MODERATE https://github.com/AlchemyCMS/alchemy_cms/blob/4.1-stable/app/controllers/alchemy/admin/resources_controller.rb#L21
cvssv3.1 5.9 https://github.com/rubysec/ruby-advisory-db/blob/master/gems/alchemy_cms/CVE-2018-18307.yml
generic_textual MODERATE https://github.com/rubysec/ruby-advisory-db/blob/master/gems/alchemy_cms/CVE-2018-18307.yml
cvssv3 5.9 https://nvd.nist.gov/vuln/detail/CVE-2018-18307
cvssv3.1 5.9 https://nvd.nist.gov/vuln/detail/CVE-2018-18307
generic_textual MODERATE https://nvd.nist.gov/vuln/detail/CVE-2018-18307
cvssv3.1 5.9 https://www.exploit-db.com/exploits/45601
generic_textual MODERATE https://www.exploit-db.com/exploits/45601
Reference id Reference type URL
http://packetstormsecurity.com/files/149787/Alchemy-CMS-4.1-Stable-Cross-Site-Scripting.html
https://api.first.org/data/v1/epss?cve=CVE-2018-18307
https://github.com/AlchemyCMS/alchemy_cms
https://github.com/AlchemyCMS/alchemy_cms/blob/4.1-stable/app/controllers/alchemy/admin/base_controller.rb#L15
https://github.com/AlchemyCMS/alchemy_cms/blob/4.1-stable/app/controllers/alchemy/admin/pictures_controller.rb#L5
https://github.com/AlchemyCMS/alchemy_cms/blob/4.1-stable/app/controllers/alchemy/admin/resources_controller.rb#L21
https://github.com/rubysec/ruby-advisory-db/blob/master/gems/alchemy_cms/CVE-2018-18307.yml
https://nvd.nist.gov/vuln/detail/CVE-2018-18307
https://www.exploit-db.com/exploits/45601
GHSA-7mj4-2984-955f https://github.com/advisories/GHSA-7mj4-2984-955f
No exploits are available.
Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:L Found at http://packetstormsecurity.com/files/149787/Alchemy-CMS-4.1-Stable-Cross-Site-Scripting.html
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:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:L Found at https://github.com/AlchemyCMS/alchemy_cms
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:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:L Found at https://github.com/AlchemyCMS/alchemy_cms/blob/4.1-stable/app/controllers/alchemy/admin/base_controller.rb#L15
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:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:L Found at https://github.com/AlchemyCMS/alchemy_cms/blob/4.1-stable/app/controllers/alchemy/admin/pictures_controller.rb#L5
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:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:L Found at https://github.com/AlchemyCMS/alchemy_cms/blob/4.1-stable/app/controllers/alchemy/admin/resources_controller.rb#L21
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:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:L Found at https://github.com/rubysec/ruby-advisory-db/blob/master/gems/alchemy_cms/CVE-2018-18307.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:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:L Found at https://nvd.nist.gov/vuln/detail/CVE-2018-18307
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:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:L Found at https://www.exploit-db.com/exploits/45601
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 0.57242
EPSS Score 0.00342
Published At June 11, 2026, 12:55 p.m.
Date Actor Action Source VulnerableCode Version
2026-06-12T01:43:18.012202+00:00 EPSS Importer Import https://epss.cyentia.com/epss_scores-current.csv.gz 38.6.0