CVE-2023-0010 — PAN-OS: Reflected Cross-Site Scripting (XSS) Vulnerability in Captive Portal Authentication

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MEDIUM

PAN-OS: Reflected Cross-Site Scripting (XSS) Vulnerability in Captive Portal Authentication

Published Jun 14, 2023

5.4

MEDIUM

CVSS 3.1

EPSS 0.38%

Description

A reflected cross-site scripting (XSS) vulnerability in the Captive Portal feature of Palo Alto Networks PAN-OS software can allow a JavaScript payload to be executed in the context of an authenticated Captive Portal user’s browser when they click on a specifically crafted link.

Affected products

Vendor Palo Alto Networks Product Pan-OS Default
unaffected
- Version
  10.0
  Status
  affected
  Constraints
  <10.0.11
- Version
  10.1
  Status
  affected
  Constraints
  <10.1.6
- Version
  10.2
  Status
  affected
  Constraints
  <10.2.2
- Version
  8.1
  Status
  affected
  Constraints
  <8.1.24
- Version
  9.0
  Status
  affected
  Constraints
  <9.0.17
- Version
  9.1
  Status
  affected
  Constraints
  <9.1.16
- Version
  11.0
  Status
  unaffected
  Constraints
  -

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor

Product

Default status

Versions

Palo Alto Networks

Pan-OS

unaffected

Version	Status	Constraints
10.0	affected	<10.0.11
10.1	affected	<10.1.6
10.2	affected	<10.2.2
8.1	affected	<8.1.24
9.0	affected	<9.0.17
9.1	affected	<9.1.16
11.0	unaffected	-

Remediation

Vendor solution

This issue is fixed in PAN-OS 8.1.24, PAN-OS 9.0.17, PAN-OS 9.1.16, PAN-OS 10.0.11, PAN-OS 10.1.6, PAN-OS 10.2.2, and all later PAN-OS versions.

Metrics

0.38% 0.00375

Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.

EPSS probability 0.00375

Score over time

2023–2026

EPSS v3
EPSS v4
EPSS v5

Percentile over time

EPSS v3
EPSS v4
EPSS v5

Table of values (8 key points)

Flat stretches are collapsed; showing up to 120 newest points.

Date	Score	Percentile	Model
Oct 1, 2026	0.38% (0.00375)	29.03th	v5 (v2026.06.15)
Jun 15, 2026	0.37% (0.00372)	28.74th	v5 (v2026.06.15)
Mar 17, 2025	0.86% (0.00864)	73.49th	v4 (v2025.03.14)
Dec 12, 2024	0.05% (0.00047)	19.52th	v3 (v2023.03.01)
Jun 20, 2024	0.05% (0.00047)	17.60th	v3 (v2023.03.01)
Jun 13, 2024	0.04% (0.00045)	14.02th	v3 (v2023.03.01)
Jun 23, 2023	0.04% (0.00045)	12.00th	v3 (v2023.03.01)
Jun 15, 2023	0.04% (0.00043)	7.01th	v3 (v2023.03.01)