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CVE-2015-6508

14
FAUCET Score

CVE-2015-6508 is a Cross-site Scripting (XSS) vulnerability affecting pfSense versions prior to 2.2.3. This allows remote attackers to inject arbitrary web script or HTML through the 'descr' parameter in a "new" action to system_authservers.php. With a CVSS score of 4.3, it has a medium attack complexity and requires no authentication, potentially leading to information disclosure. There is no evidence of active exploitation, public exploit code, or significant community discussion surrounding this vulnerability.

Impacted Technologies

VendorProductVersion(s)CPE
<= 2.2.2CPE matchmatch criteria
cpe:2.3:a:netgate:pfsense:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

4.3MEDIUM

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

Confidentiality Impact
NONE
Integrity Impact
PARTIAL
Availability Impact
NONE
Access Vector
NETWORK
Access Complexity
MEDIUM
Authentication
NONE
Exploitability Score
8.6
Impact Score
2.9
CvssVersion
2.0

Exploit Intelligence

EPSS Score
2.22%
Probability of exploitation in next 30 days
EPSS Percentile
80.8%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0222 is in the 69th percentile among its peer group of 19,958 CVEs.

Social Chatter

No social media mentions found for this CVE.

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

Remediation records are not available for this CVE.

References

redmine.pfsense.org / issues/4698
pfsense.org / security/advisories/pfSense-SA-15_06.webgui.asc
Vendor Advisory