Search for vulnerabilities
Vulnerability details: VCID-6fd9-kenc-8fhc
Vulnerability ID VCID-6fd9-kenc-8fhc
Aliases CVE-2020-10776
GHSA-484q-784p-8m5h
Summary Cross-site Scripting in keycloak A flaw was found in Keycloak before version 12.0.0, where it is possible to add unsafe schemes for the redirect_uri parameter. This flaw allows an attacker to perform a Cross-site scripting attack.
Status Published
Exploitability 0.5
Weighted Severity 6.2
Risk 3.1
Affected and Fixed Packages Package Details
Weaknesses (3)
CWE-79 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
CWE-1035 OWASP Top Ten 2017 Category A9 - Using Components with Known Vulnerabilities
CWE-937 OWASP Top Ten 2013 Category A9 - Using Components with Known Vulnerabilities
System Score Found at
cvssv3 4.0 https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2020-10776.json
epss 0.00271 https://api.first.org/data/v1/epss?cve=CVE-2020-10776
epss 0.00271 https://api.first.org/data/v1/epss?cve=CVE-2020-10776
epss 0.00271 https://api.first.org/data/v1/epss?cve=CVE-2020-10776
epss 0.00271 https://api.first.org/data/v1/epss?cve=CVE-2020-10776
epss 0.00271 https://api.first.org/data/v1/epss?cve=CVE-2020-10776
epss 0.00271 https://api.first.org/data/v1/epss?cve=CVE-2020-10776
epss 0.00271 https://api.first.org/data/v1/epss?cve=CVE-2020-10776
epss 0.00271 https://api.first.org/data/v1/epss?cve=CVE-2020-10776
epss 0.00271 https://api.first.org/data/v1/epss?cve=CVE-2020-10776
epss 0.00271 https://api.first.org/data/v1/epss?cve=CVE-2020-10776
epss 0.00271 https://api.first.org/data/v1/epss?cve=CVE-2020-10776
epss 0.00271 https://api.first.org/data/v1/epss?cve=CVE-2020-10776
epss 0.00271 https://api.first.org/data/v1/epss?cve=CVE-2020-10776
epss 0.00271 https://api.first.org/data/v1/epss?cve=CVE-2020-10776
epss 0.00271 https://api.first.org/data/v1/epss?cve=CVE-2020-10776
epss 0.00271 https://api.first.org/data/v1/epss?cve=CVE-2020-10776
epss 0.00271 https://api.first.org/data/v1/epss?cve=CVE-2020-10776
epss 0.00271 https://api.first.org/data/v1/epss?cve=CVE-2020-10776
epss 0.00271 https://api.first.org/data/v1/epss?cve=CVE-2020-10776
cvssv3.1 4.8 https://bugzilla.redhat.com/show_bug.cgi?id=1847428
generic_textual MODERATE https://bugzilla.redhat.com/show_bug.cgi?id=1847428
cvssv3.1_qr MODERATE https://github.com/advisories/GHSA-484q-784p-8m5h
cvssv3.1 4.8 https://github.com/keycloak/keycloak/commit/01be601dbdd77822827de173e34180d9322db85c
generic_textual MODERATE https://github.com/keycloak/keycloak/commit/01be601dbdd77822827de173e34180d9322db85c
cvssv2 3.5 https://nvd.nist.gov/vuln/detail/CVE-2020-10776
cvssv3.1 4.8 https://nvd.nist.gov/vuln/detail/CVE-2020-10776
generic_textual MODERATE https://nvd.nist.gov/vuln/detail/CVE-2020-10776
Reference id Reference type URL
https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2020-10776.json
https://api.first.org/data/v1/epss?cve=CVE-2020-10776
https://bugzilla.redhat.com/show_bug.cgi?id=1847428
https://github.com/keycloak/keycloak/commit/01be601dbdd77822827de173e34180d9322db85c
https://nvd.nist.gov/vuln/detail/CVE-2020-10776
cpe:2.3:a:redhat:keycloak:*:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:a:redhat:keycloak:*:*:*:*:*:*:*:*
GHSA-484q-784p-8m5h https://github.com/advisories/GHSA-484q-784p-8m5h
RHSA-2020:4929 https://access.redhat.com/errata/RHSA-2020:4929
RHSA-2020:4930 https://access.redhat.com/errata/RHSA-2020:4930
RHSA-2020:4931 https://access.redhat.com/errata/RHSA-2020:4931
RHSA-2020:4932 https://access.redhat.com/errata/RHSA-2020:4932
No exploits are available.
Vector: CVSS:3.1/AV:N/AC:H/PR:H/UI:R/S:C/C:L/I:L/A:N Found at https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2020-10776.json
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: CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N Found at https://bugzilla.redhat.com/show_bug.cgi?id=1847428
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: CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N Found at https://github.com/keycloak/keycloak/commit/01be601dbdd77822827de173e34180d9322db85c
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: AV:N/AC:M/Au:S/C:N/I:P/A:N Found at https://nvd.nist.gov/vuln/detail/CVE-2020-10776
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:L/PR:H/UI:R/S:C/C:L/I:L/A:N Found at https://nvd.nist.gov/vuln/detail/CVE-2020-10776
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
Exploit Prediction Scoring System (EPSS)
Percentile 0.50352
EPSS Score 0.00271
Published At July 30, 2025, 12:55 p.m.
Date Actor Action Source VulnerableCode Version
2025-07-31T09:02:32.290647+00:00 GithubOSV Importer Import https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2022/02/GHSA-484q-784p-8m5h/GHSA-484q-784p-8m5h.json 37.0.0