Findings

CVE-2026-21904

An Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in Juniper Networks Junos Space allows an attacker to inject scri…

Published Apr 9, 2026 · updated Jul 8, 2026 · juniper junos space

An Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in Juniper Networks Junos Space allows an attacker to inject script tags in the list filter field that, when visited by another user, enables the attacker to execute commands with the target's permissions, including an administrator. This issue affects all versions of Junos Space before 24.1R5 Patch V3.

Code

The project this record applies to. Exploit listings stay in References.

No public source repository is identified for this product.

Timeline

Detection, updates, and resolution for this record.

  1. Apr 9, 2026 · NIST NVD

    Detected

    An Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in Juniper Networks Junos Space allows an attacker to inject script tags in the list filter field that, when visited by another user, enables the attacker to execute commands with the target's permissions, including an administrator. This issue affects all versions of Junos Space before 24.1R5 Pat

  2. Jul 8, 2026 · NIST NVD

    Updated

    An Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in Juniper Networks Junos Space allows an attacker to inject script tags in the list filter field that, when visited by another user, enables the attacker to execute commands with the target's permissions, including an administrator. This issue affects all versions of Junos Space before 24.1R5 Pat

Affected

  • cpe juniper/junos space1.0
  • cpe juniper/junos space1.1
  • cpe juniper/junos space1.2
  • cpe juniper/junos space1.3
  • cpe juniper/junos space1.4
  • cpe juniper/junos space11.1
  • cpe juniper/junos space11.2
  • cpe juniper/junos space2.0

Sources

  • CVE.orgVulnerability recordCVE-2026-21904

    Official CVE identifier

    cve.org
  • NIST NVDVulnerability recordCVE-2026-21904

    An Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in Juniper Networks Junos Space allows an attacker to inject script tags in the list filter field that, when visited by another user, enables the attacker to execute commands w

    nvd.nist.gov

References

CVE-2026-21904 · ZeroDay Findings