Home/CVE/A Cross-site Scripting (XSS) vulnerability in the J-Web component of Juniper Networks Junos OS allows an unauthenticated
CVE

CVE-2022-22242

A Cross-site Scripting (XSS) vulnerability in the J-Web component of Juniper Networks Junos OS allows an unauthenticated

A Cross-site Scripting (XSS) vulnerability in the J-Web component of Juniper Networks Junos OS allows an unauthenticated attacker to run malicious scripts reflected off of J-Web to the victim's browser in the context of their session within J-Web. This issue affects Juniper Networks Junos OS all versions prior to 19.1R3-S9.

19.2 versions prior to 19.2R3-S6.

19.3 versions prior to 19.3R3-S7.

19.4 versions prior to 19.4R2-S7, 19.4R3-S8.

20.1 versions prior to 20.1R3-S5.

20.2 versions prior to 20.2R3-S5.

20.3 versions prior to 20.3R3-S5.

20.4 versions prior to 20.4R3-S4.

21.1 versions prior to 21.1R3-S4.

21.2 versions prior to 21.2R3-S1.

21.3 versions prior to 21.3R3.

21.4 versions prior to 21.4R2.

22.1 versions prior to 22.1R2.

MEDIUM · CVSS 6.1 EPSS 0.64552
Act now
  • EPSS ≥ 0.50 - high probability of exploitation in the next 30 days
  • EPSS percentile: top 2% of all CVEs by exploitation likelihood
  • Public exploit or PoC is available
Sigma rules0 YARA rules0
⬡

Weakness Classification

CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
▤

Affected Products & Versions

2
juniper junos< 19.1
juniper junosall versions
⚠

Public Exploits & PoCs

1
nucleiJuniper Web Device Manager - Cross-Site Scriptingmedium
◈

Detection Rules (IDS/IPS)

1
et-openET MALWARE Potential Juniper Reflected XSS Attempt (CVE-2022-22242)trojan-activity
Open rulesets (ET Open, Snort Community, abuse.ch) link to source. Commercial rulesets are reference-only.
▣

Scoring & Timeline

6.1
MEDIUM · CVSS v3.1 · sirt@juniper.net
View on NVD
Attack Vector
Network Adjacent Local Physical
Attack Complexity
Low High
Privileges Required
None Low High
User Interaction
None Required
Scope
Unchanged Changed
Confidentiality
None Low High
Integrity
None Low High
Availability
None Low High
Published to NVD18 Oct 2022 · 03:15 AM
CVSS VectorCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
SSVC triage · cisa-vulnrichment
Exploitation
none
Automatable
no
Technical impact
partial
SSVC asks the questions that actually drive patch urgency: is it being exploited, can attacks be automated, and how total is the impact.
🔗

References & Sources

1
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
https://kb.juniper.net/JSA69899Vendor Advisory
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