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CVE-2022-22181

Junos OS: J-Web can be compromised through reflected XSS attacks

High8.0EPSS 0.69%
Published
Updated
Reserved
Assigned by
juniper

Description

A reflected Cross-site Scripting (XSS) vulnerability in J-Web of Juniper Networks Junos OS allows a network-based authenticated attacker to run malicious scripts reflected off J-Web to the victim's browser in the context of their session within J-Web. This may allow the attacker to gain control of the device or attack other authenticated user sessions. This issue affects: Juniper Networks Junos OS All versions prior to 18.3R3-S5; 18.4 versions prior to 18.4R3-S9; 19.1 versions prior to 19.1R3-S6; 19.2 versions prior to 19.2R3-S3; 19.3 versions prior to 19.3R2-S6, 19.3R3-S3; 19.4 versions prior to 19.4R3-S5; 20.1 versions prior to 20.1R3-S4; 20.2 versions prior to 20.2R3-S2; 20.3 versions prior to 20.3R3; 20.4 versions prior to 20.4R3; 21.1 versions prior to 21.1R1-S1, 21.1R2.

Scores

CVSS scores of CVE-2022-22181, by who scored it
Scored byCVSSScoreVector
juniperCNA (assigner)3.1High8.0CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H
NVDNVD · Modified3.1Medium5.4CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
EPSS (exploitation in 30 days)
0.69% · top 47% of all CVEs (6 Nov 2026)
Loading the EPSS history…

The list uses the assigner's score when there is one, then CISA's, then NVD's: High 8.0.

Weakness

Affected products

  • Juniper Networks · Junos OS

    • affected unspecified – < 18.3R3-S5
    • affected 18.4 – < 18.4R3-S9
    • affected 19.1 – < 19.1R3-S6
    • affected 19.2 – < 19.2R3-S3
    • affected 19.3 – < 19.3R2-S6, 19.3R3-S3
    • affected 19.4 – < 19.4R3-S5
    • affected 20.1 – < 20.1R3-S4
    • affected 20.2 – < 20.2R3-S2
    • affected 20.3 – < 20.3R3
    • affected 20.4 – < 20.4R3
    • affected 21.1 – < 21.1R1-S1, 21.1R2

What to do

Solution: The following software releases have been updated to resolve this specific issue: 18.3R3-S5, 18.4R3-S9, 19.1R3-S6, 19.2R3-S3, 19.3R2-S6, 19.3R3-S3, 19.4R3-S5, 20.1R3-S4, 20.2R3-S2, 20.3R3, 20.4R3, 21.1R1-S1, 21.1R2, 21.2R1, and all subsequent releases.

Workaround: To reduce the risk of exploitation of this issue, use access lists or firewall filters to limit access to only trusted administrative networks, hosts and users. Alternatively, J-Web can be disabled.

Exploitation: Juniper SIRT is not aware of any malicious exploitation of this vulnerability.

References (1)

Sources

The same CVE in the primary databases and aggregators, to check against.

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Record last updated .