CVE-2021-25313

Rancher: XSS on /v3/cluster/

MEDIUM
6.1
CVSS Score
Published: March 5, 2021 at 08:35 AM UTC
Updated: June 17, 2026 at 03:41 AM UTC
1 product affected across 1 vendorRancher

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Severity
MEDIUM6.1
Exploit prediction
EPSS 1%

Description

A Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in Rancher allows remote attackers to execute JavaScript via malicious links. This issue affects: SUSE Rancher Rancher versions prior to 2.5.6.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

v < 2.5.6Rancher ≤ v < 2.5.6
Affected range stops below 2.5.6, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

References (3)

x_refsource_CONFIRMIssue TrackingVendor Advisory
https://bugzilla.suse.com/show_bug.cgi?id=1181852
x_refsource_CONFIRMIssue TrackingThird Party Advisory
https://github.com/rancher/rancher/issues/31583
x_refsource_CONFIRMRelease NotesThird Party Advisory
https://github.com/rancher/rancher/releases/tag/v2.5.6

CVSS

Attack Vector
NETWORK
Complexity
LOW
Privileges
NONE
User Interaction
REQUIRED
Scope
CHANGED
Confidentiality
LOW
Integrity
LOW
Availability
NONE
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-79

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