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CVE-2008-7293

19
FAUCET Score

CVE-2008-7293 describes a "cookie forcing" vulnerability in Mozilla Firefox versions prior to 4, where the browser failed to adequately restrict modifications to cookies set during HTTPS sessions. This allowed man-in-the-middle attackers to overwrite or delete arbitrary cookies by injecting a Set-Cookie header in an HTTP response, primarily due to the absence of the HTTP Strict Transport Security (HSTS) includeSubDomains feature. The vulnerability has a CVSS score of 5.8, indicating a medium severity with network-based attacks, medium complexity, and potential for partial impact on integrity and availability. There is no evidence of active exploitation, publicly available exploit code, or significant community discussion surrounding this decade-old vulnerability.

Impacted Technologies

VendorProductVersion(s)CPE
<= 4.0CPE matchmatch criteria
cpe:2.3:a:mozilla:firefox:*:beta12:*:*:*:*:*:*
1.0CPE matchmatch criteria
cpe:2.3:a:mozilla:firefox:1.0:*:*:*:*:*:*:*
1.0CPE matchmatch criteria
cpe:2.3:a:mozilla:firefox:1.0:preview_release:*:*:*:*:*:*
1.0.1CPE matchmatch criteria
cpe:2.3:a:mozilla:firefox:1.0.1:*:*:*:*:*:*:*
1.0.2CPE matchmatch criteria
cpe:2.3:a:mozilla:firefox:1.0.2:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

5.8MEDIUM

AV:N/AC:M/Au:N/C:N/I:P/A:P

Confidentiality Impact
NONE
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
Access Vector
NETWORK
Access Complexity
MEDIUM
Authentication
NONE
Exploitability Score
8.6
Impact Score
4.9
CvssVersion
2.0

Exploit Intelligence

EPSS Score
1.68%
Probability of exploitation in next 30 days
EPSS Percentile
74.5%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0168 is in the 51st percentile among its peer group of 19,955 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.0 Bluesky, 0.0 Mastodon, and 0.2 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.0 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (4)

mozillapatch availablevia nvd_reference
View patch
redhatno patchvia redhat_api
Product: Red Hat Enterprise Linux 5Fixed in: firefox
redhatno patchvia redhat_api
Product: Red Hat Enterprise Linux 6Fixed in: firefox
redhatend of lifevia redhat_api
Product: Red Hat Enterprise Linux 4Fixed in: firefox

Vendor Advisories (1)

redhatCVE-2008-7293Moderate

firefox: unable to restrict modifications to cookies in HTTPS sessions due to loack of HSTS support

Nov 24, 2008

References

code.google.com / p/browsersec/wiki/Part2
hacks.mozilla.org / 2010/08/firefox-4-http-strict-transport-security-force-https
michael-coates.blogspot.com / 2010/01/cookie-forcing-trust-your-cookies-no.html
bugzilla.mozilla.org / show_bug.cgi
Patch
scarybeastsecurity.blogspot.com / 2008/11/cookie-forcing.html
scarybeastsecurity.blogspot.com / 2011/02/some-less-obvious-benefits-of-hsts.html