Predictive Vulnerability Intelligence.

Product

  • Product
  • Pricing
  • Documentation

Company

  • About
  • Partnerships
  • Blog
  • Support

Legal

  • Terms
  • Privacy
  • Data Licensing

© 2026 FAUCET Technologies LLC. All rights reserved.

CVE-2019-8953

53
FAUCET Score

CVE-2019-8953 describes a Cross-Site Scripting (XSS) vulnerability in the HAProxy package for pfSense, specifically affecting versions before 0.59_16. This medium-severity vulnerability (CVSS 6.1) allows unauthenticated attackers to inject malicious scripts via the 'desc' or 'table_actionsaclN' parameters in haproxy_listeners.php and haproxy_listeners_edit.php, requiring user interaction for successful exploitation. While not on the CISA KEV catalog, an exploit (EDB-46538) exists, demonstrating persistent XSS, though there is no evidence of widespread active exploitation or significant community discussion.

Impacted Technologies

VendorProductVersion(s)CPE
< 0.59_16CPE matchmatch criteria
cpe:2.3:a:netgate:haproxy:*:*:*:*:*:pfsense:*:*

CVSS Data

CVSS version used by this source: 3.0

6.1MEDIUM

CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
CHANGED
Confidentiality Impact
LOW
Integrity Impact
LOW
Availability Impact
NONE
Exploitability Score
2.8
Impact Score
2.7
CvssVersion
3.0

Exploit Intelligence

EPSS Score
52.24%
Probability of exploitation in next 30 days
EPSS Percentile
98.8%
Percentile rank of EPSS score among Peer Group
As of 2026-07-26
Model: v2026.06.15
ExploitDB: EDB-46538 · Mar 13, 2019
This CVE's current EPSS score of 0.5224 is in the 100th percentile among its peer group of 26,219 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, 0.1 Bluesky, 0.0 Mastodon, and 0.1 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (1)

github_advisorypatch availablevia nvd_reference
View patch

References

cxsecurity.com / issue/WLB-2019020153
ExploitThird Party Advisory
github.com / pfsense/FreeBSD-ports/commit/2dded47b3202dfdf89aa96f84bf701b3d5acbe6c
PatchThird Party Advisory
github.com / pfsense/FreeBSD-ports/commit/3b40366aca55910b224ecf49d3fdacc9ad6c04f5
PatchThird Party Advisory
redmine.pfsense.org / issues/9335
PatchThird Party Advisory
exploit-db.com / exploits/46538
ExploitThird Party AdvisoryVDB Entry