CVE-2013-6666

The PepperFlashRendererHost::OnNavigate function in renderer/pepper/pepper_flash_renderer_host.cc...

5.8 Medium

The PepperFlashRendererHost::OnNavigate function in renderer/pepper/pepper_flash_renderer_host.cc in Google Chrome before 33.0.1750.146 does not verify that all headers are Cross-Origin Resource Sharing (CORS) simple headers before proceeding with a PPB_Flash.Navigate operation, which might allow remote attackers to bypass intended CORS restrictions via an inappropriate header.

Exploit likelihood

1.19%Unchanged since Feb 4, 2022

What each source reports

NVD Score used 5.8

Record: CVE-2013-6666
CVSS 2.0: 5.8 MediumAV:N/AC:M/Au:N/C:P/I:P/A:N
Weakness: CWE-264
Updated: 2026-11-02

CVE List No score

Record: CVE-2013-6666
Updated: 2026-11-02

EUVDEUVD-2013-6468 No score

Record: EUVD-2013-6468
Updated: 2026-11-03

GitHub AdvisoriesGHSA-qp9p-p38x-xjv3 No score

The PepperFlashRendererHost::OnNavigate function in renderer/pepper/pepper_flash_renderer_host.cc...

Record: GHSA-qp9p-p38x-xjv3
Updated: 2026-11-02

OSVMGASA-2014-0121 No score

Updated chromium-browser-stable package fixes security vulnerabilities

Use-after-free in svg images (CVE-2013-6663). Use-after-free in speech recognition (CVE-2013-6664). Heap buffer overflow in software rendering (CVE-2013-6665). Chrome allows requests in flash header request (CVE-2013-6666). Various fixes from internal audits, fuzzing and other initiatives (CVE-2013-6667). Multiple vulnerabilities in V8 fixed in version 3.24.35.10 (CVE-2013-6668).

Record: MGASA-2014-0121
Updated: 2026-11-02

Affected products

google chrome

Affected packages

Affected packages
Package	Affected	Fixed
`chromium-browser` Debian:7 From an advisory covering 23 CVEs	before 33.0.1750.152-1~deb7u1, plus listed versions 26.0.1410.43-127.0.1453.110-127.0.1453.110-1~deb7u127.0.1453.110-227.0.1453.93-1 Show 26 moreShow less 27.0.1453.93-1~deb7u128.0.1500.71-128.0.1500.71-1~deb7u128.0.1500.71-228.0.1500.95-128.0.1500.95-1~deb7u128.0.1500.95-228.0.1500.95-329.0.1547.57-129.0.1547.57-1~deb7u129.0.1547.57-229.0.1547.57-329.0.1547.57-3+exp130.0.1599.101-130.0.1599.101-1~deb7u130.0.1599.101-230.0.1599.101-331.0.1650.57-131.0.1650.57-1~deb7u131.0.1650.63-131.0.1650.63-1~deb7u132.0.1700.123-132.0.1700.123-1~deb7u132.0.1700.123-232.0.1700.123-332.0.1700.123-4	33.0.1750.152-1~deb7u1
`chromium-browser-stable` Mageia:3 From an advisory covering 6 CVEs	before 33.0.1750.146-1.mga3	33.0.1750.146-1.mga3
`chromium-browser-stable` Mageia:3 From an advisory covering 6 CVEs	before 33.0.1750.146-1.mga3.tainted	33.0.1750.146-1.mga3.tainted
`chromium-browser-stable` Mageia:4 From an advisory covering 6 CVEs	before 33.0.1750.146-1.mga4	33.0.1750.146-1.mga4
`chromium-browser-stable` Mageia:4 From an advisory covering 6 CVEs	before 33.0.1750.146-1.mga4.tainted	33.0.1750.146-1.mga4.tainted

History

History
Recorded	Changed	Sources
Nov 6, 2026	affected, facts
Nov 3, 2026	aliases	EUVD
Nov 2, 2026	first indexed	CVE List, GitHub Advisories, NVD, OSV

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2013-6666 is a medium vulnerability (CVSS 5.8) in Google Chrome, published March 5, 2014. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 1.19%, the 68th percentile. No source names a fixed version.