CVE-2022-22242 Junos OS: Cross-site Scripting (XSS) vulnerability in J-Web
Unauthenticated attackers can execute malicious scripts in victims' browsers via J-Web, potentially leading to session hijacking or data theft.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2022-22242?
CVE-2022-22242 is a medium-severity cross-site scripting vulnerability in Juniper Junos, published on 18 Oct 2022. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Official description
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.
Weakness: CWE-79
Which versions are affected by CVE-2022-22242?
It affects 1 product.
Products include Juniper Junos.
How do I fix CVE-2022-22242?
No fix has been published for CVE-2022-22242 yet. Limit exposure of the affected software until one is available.
Escape output for the context it lands in and set a strict Content Security Policy. Upgrading the affected component is the real fix. More about Cross-site scripting.
Is CVE-2022-22242 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2022-22242 exists.
Public exploit code: 1 Nuclei template.
Other vulnerabilities in Juniper Junos
- CVE-2023-36845 Juniper Junos OS EX Series and SRX Series PHP External Variable Modification
- CVE-2020-1631 Juniper Junos OS Path Traversal
- CVE-2025-21590 Juniper Junos OS Improper Isolation or Compartmentalization
- CVE-2023-36851 Juniper Junos OS SRX Series Missing Authentication for Critical Function
- CVE-2023-36844 Juniper Junos OS EX Series PHP External Variable Modification
Sources
Also known as GHSA-qq74-54g4-qw47.