CVE-2019-8953
MEDIUMnetgate/haproxy < 0.59_16 - Cross-Site Scripting via Description or ACL Parameter
Title source: llmExploitation Summary
EIP tracks 1 public exploit for CVE-2019-8953. PoCs published by Gionathan Reale.
AI-analyzed exploit summary This exploit demonstrates a stored XSS vulnerability in pfSense's HAProxy package. The payload is injected via the 'Description' parameter in the HAProxy listener edit page, triggering a JavaScript alert.
Description
The HAProxy package before 0.59_16 for pfSense has XSS via the desc (aka Description) or table_actionsaclN parameter, related to haproxy_listeners.php and haproxy_listeners_edit.php.
Exploits (1)
exploitdb
WORKING POC
by Gionathan Reale · textwebappsphp
https://www.exploit-db.com/exploits/46538
This exploit demonstrates a stored XSS vulnerability in pfSense's HAProxy package. The payload is injected via the 'Description' parameter in the HAProxy listener edit page, triggering a JavaScript alert.
Classification
Working Poc 90%
Attack Type
Xss
Complexity
Trivial
Reliability
Reliable
Target:
pfSense 2.4.4-p1 with HAProxy Package 0.59_14
Auth required
Prerequisites:
Access to the HAProxy listener edit page · Valid authentication credentials
MITRE ATT&CK
devstral-2 · analyzed Feb 16, 2026
Full analysis →
References (5)
Core 5
Core References
Patch, Third Party Advisory x_refsource_misc
https://redmine.pfsense.org/issues/9335
Patch, Third Party Advisory x_refsource_misc
https://github.com/pfsense/FreeBSD-ports/commit/2dded47b3202dfdf89aa96f84bf701b3d5acbe6c
Exploit, Third Party Advisory x_refsource_misc
https://cxsecurity.com/issue/WLB-2019020153
Patch, Third Party Advisory x_refsource_misc
https://github.com/pfsense/FreeBSD-ports/commit/3b40366aca55910b224ecf49d3fdacc9ad6c04f5
Exploit, Third Party Advisory, VDB Entry exploit
x_refsource_exploit-db
https://www.exploit-db.com/exploits/46538/
Scores
CVSS v3
6.1
EPSS
0.7172
EPSS Percentile
98.8%
Attack Vector
NETWORK
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Details
CWE
CWE-79
Status
published
Products (1)
netgate/haproxy
< 0.59_16
Published
Feb 20, 2019
Tracked Since
Feb 18, 2026