CVE-2026-90453CWE-601

CVE-2026-90453

Low · published September 12, 2026

CVSS v3.1
3.5
EPSS
0%
Percentile
4.0
In the wild
Unconfirmed
What it is

A file-upload handler redirects the authenticated client's browser to a URL taken directly from that same request's Referer header, without validating it against the application's own origin. This allows an authenticated attacker to craft a request that causes another user's browser to be redirected to an arbitrary external destination after completing an upload.

The record
Technical detail
CVSS v3.1
3.5 · LOW
Vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:L/A:N
CVSS v4.0
5.1 · CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N
EPSS
0.00152 · 4.0th percentile
Weakness
CWE-601 · URL Redirection to Untrusted Site ('Open Redirect')
Published
2026-09-12T02:16Z
References (2)
https://raw.githubusercontent.com/cisagov/CSAF/develop/csaf_files/OT/white/2026/icsa-26-254-01.json · [email protected]https://www.cisa.gov/news-events/ics-advisories/icsa-26-254-01 · [email protected]
EPSS history
Timeline
  • 13 SEP 03:23Z
    EPSS moved — → 0%
    epss
  • 11 SEP 21:51Z
    A file-upload handler redirects the authenticated client's browser to a URL taken directly from that same request's Referer header, without validating it…
    cvelistv5