Open Redirect on Web Login endpoint in Splunk Enterprise (Splunk Splunk Enterprise)

CVE-2025-20378
LOW 3.1

At a glance

Source
NVD
EPSS
EPSS 0.25 % · percentile 17 ()
State
PUBLISHED
Published
Updated
Assigner
cisco
NVD status
Analyzed

Description

In Splunk Enterprise versions below 10.0.1, 9.4.5, 9.3.7, 9.2.9, and Splunk Cloud Platform versions below 10.0.2503.5, 9.3.2411.111, and 9.3.2408.121, an unauthenticated attacker could craft a malicious URL using the `return_to` parameter of the Splunk Web login endpoint. When an authenticated user visits the malicious URL, it could cause an unvalidated redirect to an external malicious site. To be successful, the attacker has to trick the victim into initiating a request from their browser. The unauthenticated attacker should not be able to exploit the vulnerability at will.

Weaknesses (CWE)

  • CWE-601 — URL Redirection to Untrusted Site

References

Scores

VersionScoreVectorScored by
CVSS 3.1LOW 3.1CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:N/A:Ncisco
CVSS 3.1LOW 3.1CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:N/A:NNVD · psirt@cisco.com (Secondary)
CVSS 3.1MEDIUM 6.1CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:NNVD · nvd@nist.gov (Primary)

European references

CERT-FR advisories

Affected configurations (NVD CPE)

Affected products

ProductVersions
Splunk · Splunk Enterpriseaffected 10.0 < 10.0.1 ; affected 9.4 < 9.4.5 ; affected 9.3 < 9.3.7 ; affected 9.2 < 9.2.9
Splunk · Splunk Cloud Platformaffected 10.0.2503 < 10.0.2503.5 ; affected 9.3.2411 < 9.3.2411.111 ; affected 9.3.2408 < 9.3.2408.121

Sources

SourceLicence
CVE List (CVEProject cvelistV5)CVE Program Terms of Use
EPSS (FIRST.org)FIRST — attribution requested
ENISA EUVDENISA — reproduction authorised, source acknowledged
CERT-FR (ANSSI)Licence Ouverte / Etalab 2.0
NVD (NIST) via fkie-cad/nvd-json-data-feedsPublic domain — this product uses data from the NVD API but is not endorsed or certified by the NVD