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Vulnerability details: VCID-r6sg-f54s-8uhj
Vulnerability ID VCID-r6sg-f54s-8uhj
Aliases CVE-2015-8766
GHSA-4c5w-qqfg-grf3
Summary Symphony CMS XSS Vulnerabilities Multiple cross-site scripting (XSS) vulnerabilities in `content/content.systempreferences.php` in Symphony CMS before 2.6.4 allow remote attackers to inject arbitrary web script or HTML via the (1) `email_sendmail[from_name]`, (2) `email_sendmail[from_address]`, (3) `email_smtp[from_name]`, (4) `email_smtp[from_address]`, (5) `email_smtp[host]`, (6) `email_smtp[port]`, (7) `jit_image_manipulation[trusted_external_sites]`, or (8) `maintenance_mode[ip_whitelist]` parameters to system/preferences.
Status Published
Exploitability None
Weighted Severity None
Risk None
Affected and Fixed Packages Package Details
Weaknesses (3)
CWE-79 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
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 0.00273 https://api.first.org/data/v1/epss?cve=CVE-2015-8766
cvssv3.1 6.1 http://seclists.org/fulldisclosure/2015/Dec/60
generic_textual MODERATE http://seclists.org/fulldisclosure/2015/Dec/60
cvssv3.1_qr MODERATE https://github.com/advisories/GHSA-4c5w-qqfg-grf3
cvssv3.1 6.1 https://github.com/symphonycms/symphony-2
generic_textual MODERATE https://github.com/symphonycms/symphony-2
cvssv3.1 6.1 https://github.com/symphonycms/symphony-2/commit/651e150091c61fb60ad1dff2bc2166185a83d9d6
generic_textual MODERATE https://github.com/symphonycms/symphony-2/commit/651e150091c61fb60ad1dff2bc2166185a83d9d6
cvssv3.1 6.1 https://nvd.nist.gov/vuln/detail/CVE-2015-8766
generic_textual MODERATE https://nvd.nist.gov/vuln/detail/CVE-2015-8766
cvssv3.1 6.1 https://web.archive.org/web/20210321090853/https://cybersecurityworks.com/zerodays/cve-2015-8766-getsymphoney.html
generic_textual MODERATE https://web.archive.org/web/20210321090853/https://cybersecurityworks.com/zerodays/cve-2015-8766-getsymphoney.html
cvssv3.1 6.1 http://www.getsymphony.com/download/releases/version/2.6.4
generic_textual MODERATE http://www.getsymphony.com/download/releases/version/2.6.4
Reference id Reference type URL
https://api.first.org/data/v1/epss?cve=CVE-2015-8766
http://seclists.org/fulldisclosure/2015/Dec/60
https://github.com/symphonycms/symphony-2
https://github.com/symphonycms/symphony-2/commit/651e150091c61fb60ad1dff2bc2166185a83d9d6
https://nvd.nist.gov/vuln/detail/CVE-2015-8766
https://web.archive.org/web/20210321090853/https://cybersecurityworks.com/zerodays/cve-2015-8766-getsymphoney.html
http://www.getsymphony.com/download/releases/version/2.6.4
http://www.getsymphony.com/download/releases/version/2.6.4/
GHSA-4c5w-qqfg-grf3 https://github.com/advisories/GHSA-4c5w-qqfg-grf3
No exploits are available.
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N Found at http://seclists.org/fulldisclosure/2015/Dec/60
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:R/S:C/C:L/I:L/A:N Found at https://github.com/symphonycms/symphony-2
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:R/S:C/C:L/I:L/A:N Found at https://github.com/symphonycms/symphony-2/commit/651e150091c61fb60ad1dff2bc2166185a83d9d6
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:R/S:C/C:L/I:L/A:N Found at https://nvd.nist.gov/vuln/detail/CVE-2015-8766
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:R/S:C/C:L/I:L/A:N Found at https://web.archive.org/web/20210321090853/https://cybersecurityworks.com/zerodays/cve-2015-8766-getsymphoney.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:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N Found at http://www.getsymphony.com/download/releases/version/2.6.4
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 0.50454
EPSS Score 0.00273
Published At June 30, 2025, 12:55 p.m.
Date Actor Action Source VulnerableCode Version
2025-07-01T12:28:18.501841+00:00 GithubOSV Importer Import https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2022/05/GHSA-4c5w-qqfg-grf3/GHSA-4c5w-qqfg-grf3.json 36.1.3