CVE-2021-46898Public exploitNetwork attack vector

Open redirect via protocol-relative redirect parameter

Published Oct 22, 2023 · Updated Sep 16, 2024

Open redirect in Django Grappelli before 2.15.2 allows remote attackers to send users to an untrusted site through a crafted URL. The switch_user view in grappelli/views/switch.py accepts the redirect query value when it merely starts with a slash, so a protocol-relative //host URL passes validation and reaches Django's redirect response. Exploitation requires an authenticated staff user to follow the crafted switch-user link, after which the browser navigates to an attacker-controlled site.

CVSS severity6.1
Medium
EPSS probability0.47%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Open redirect in Django Grappelli before 2.15.2 allows remote attackers to send users to an untrusted site through a crafted URL. The switch_user view in grappelli/views/switch.py accepts the redirect query value when it merely starts with a slash, so a protocol-relative //host URL passes validation and reaches Django's redirect response. Exploitation requires an authenticated staff user to follow the crafted switch-user link, after which the browser navigates to an attacker-controlled site.

The record

CVE
CVE-2021-46898
Published
Oct 22, 2023
Updated
Sep 16, 2024
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-601, T1204.001
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Oct 22, 2023CVE publishedPublication date reported by the CVE source.
  2. Sep 16, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

6.1NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
5.3GitHub Advisory DatabaseCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-601URL Redirection to Untrusted Site ('Open Redirect')
T1204.001User Execution: Malicious Link

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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