SOC status:Duty analyst on shift

UK Cyber Defence
VulnerabilityModified

CVE-2019-8953

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.

EXPLOITMEDIUM 6.1EPSS 52.2%

Does this matter?

EPSS puts the probability of exploitation in the next 30 days at 52.2%, higher than 99% of all known CVEs. Patch or mitigate before the next change window.

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.

CVSS 3.0
6.1 MEDIUMCVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
EPSS
52.24% probability · 99th percentile
Public exploits
1 in Exploit-DB · first 13 March 2019
CISA KEV
Not listed
Weakness
CWE-79
Affected
netgate/haproxy
Source
cve@mitre.org
EPSS trend
0%40%80%21 September 2026: 78.35%22 September 2026: 52.24%3 November 2026: 52.24%21 September 20263 November 2026

EPSS moved from 78.3% on 21 September 2026 to 52.2% on 3 November 2026. The dashed line is the ten per cent mark our analysts treat as “patch before the next change window”.

Public exploits (1)

Entries in Exploit-DB that cite this CVE. Links go to the Exploit-DB page and to the file in the public repository; nothing is hosted here. A verified tick means the Exploit-DB team confirmed the exploit works against the stated version.

EDB-IDTitleTypePublishedVerified
EDB-46538source ↗pfSense 2.4.4-p1 (HAProxy Package 0.59_14) - Persistent Cross-Site Scriptingphp · Gionathan Realewebapps13 March 2019no

Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.