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Advisory details: gitlab / pypi/gradio/CVE-2025-5320
Advisory ID gitlab/pypi/gradio/CVE-2025-5320
Aliases CVE-2025-5320
GHSA-wmjh-cpqj-4v6x
Summary Gradio CORS Origin Validation Bypass Vulnerability A vulnerability classified as problematic has been found in gradio-app gradio up to 5.29.1. This affects the function is_valid_origin of the component CORS Handler. The manipulation of the argument localhost_aliases leads to origin validation error. It is possible to initiate the attack remotely. The complexity of an attack is rather high. The exploitability is told to be difficult. The exploit has been disclosed to the public and may be used. The vendor was contacted early about this disclosure but did not respond in any way.
Status Published
Exploitability 0.5
Weighted Severity 0.0
Risk
Affected and Fixed Packages Package Details
Introduced and Fixed Package Commit Patches Package Commit Patches Details
Weaknesses (3)
CWE-345 Insufficient Verification of Data Authenticity
CWE-937 OWASP Top Ten 2013 Category A9 - Using Components with Known Vulnerabilities
CWE-1035 OWASP Top Ten 2017 Category A9 - Using Components with Known Vulnerabilities
System Score Found at
cvssv2 https://gitlab.com/gitlab-org/advisories-community/-/blob/main/pypi/gradio/CVE-2025-5320.yml
cvssv3.1 https://gitlab.com/gitlab-org/advisories-community/-/blob/main/pypi/gradio/CVE-2025-5320.yml
Reference id Reference type URL
https://gist.github.com/superboy-zjc/aa3dfa161d7b19d8a53ab4605792f2fe
https://gist.github.com/superboy-zjc/aa3dfa161d7b19d8a53ab4605792f2fe#proof-of-concept-poc
https://github.com/gradio-app/gradio
https://vuldb.com/?ctiid.310491
https://vuldb.com/?id.310491
https://vuldb.com/?submit.580250
CVE-2025-5320 https://nvd.nist.gov/vuln/detail/CVE-2025-5320
GHSA-wmjh-cpqj-4v6x https://github.com/advisories/GHSA-wmjh-cpqj-4v6x
No exploits are available.

No EPSS data available for this advisory.

Patch URL
There are no known patches.
Vector: AV:N/AC:H/Au:N/C:N/I:P/A:N Found at https://gitlab.com/gitlab-org/advisories-community/-/blob/main/pypi/gradio/CVE-2025-5320.yml
Exploitability (E) Access Vector (AV) Access Complexity (AC) Authentication (Au) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

high

functional

unproven

proof_of_concept

not_defined

local

adjacent_network

network

high

medium

low

multiple

single

none

none

partial

complete

none

partial

complete

none

partial

complete
Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N Found at https://gitlab.com/gitlab-org/advisories-community/-/blob/main/pypi/gradio/CVE-2025-5320.yml
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none

Vector: SSVCv2/E:P/A:N/T:P/P:M/B:A/M:M/D:T/2025-05-29T13:43:51Z/

Decision: Track

Source URL: https://github.com/cisagov/vulnrichment/blob/develop/2025/5xxx/CVE-2025-5320.json

Source Advisory: vulnrichment/CVE-2025-5320

View SSVC decision tree 
[{'Exploitation': 'poc'},
 {'Automatable': 'no'},
 {'Technical Impact': 'partial'},
 {'Mission Prevalence': 'minimal'},
 {'Public Well-being Impact': 'material'},
 {'Mission & Well-being': 'medium'}]