Search for vulnerabilities
Vulnerability details: VCID-7t4n-1rts-g7cx
Vulnerability ID VCID-7t4n-1rts-g7cx
Aliases CVE-2023-6134
GHSA-cvg2-7c3j-g36j
Summary Keycloak vulnerable to reflected XSS via wildcard in OIDC redirect_uri Keycloak prevents certain schemes in redirects, but permits them if a wildcard is appended to the token. This could permit an attacker to submit a specially crafted request leading to XSS or possibly further attacks.
Status Published
Exploitability 0.5
Weighted Severity 6.2
Risk 3.1
Affected and Fixed Packages Package Details
Weaknesses (5)
CWE-75 Failure to Sanitize Special Elements into a Different Plane (Special Element Injection)
CWE-1035 OWASP Top Ten 2017 Category A9 - Using Components with Known Vulnerabilities
CWE-79 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
CWE-937 OWASP Top Ten 2013 Category A9 - Using Components with Known Vulnerabilities
CWE-74 Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection')
System Score Found at
cvssv3.1 4.6 https://access.redhat.com/errata/RHSA-2023:7854
generic_textual MODERATE https://access.redhat.com/errata/RHSA-2023:7854
cvssv3.1 4.6 https://access.redhat.com/errata/RHSA-2023:7855
generic_textual MODERATE https://access.redhat.com/errata/RHSA-2023:7855
cvssv3.1 4.6 https://access.redhat.com/errata/RHSA-2023:7856
generic_textual MODERATE https://access.redhat.com/errata/RHSA-2023:7856
cvssv3.1 4.6 https://access.redhat.com/errata/RHSA-2023:7857
generic_textual MODERATE https://access.redhat.com/errata/RHSA-2023:7857
cvssv3.1 4.6 https://access.redhat.com/errata/RHSA-2023:7858
generic_textual MODERATE https://access.redhat.com/errata/RHSA-2023:7858
cvssv3.1 4.6 https://access.redhat.com/errata/RHSA-2023:7860
generic_textual MODERATE https://access.redhat.com/errata/RHSA-2023:7860
cvssv3.1 4.6 https://access.redhat.com/errata/RHSA-2023:7861
generic_textual MODERATE https://access.redhat.com/errata/RHSA-2023:7861
cvssv3 4.6 https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2023-6134.json
cvssv3.1 4.6 https://access.redhat.com/security/cve/CVE-2023-6134
generic_textual MODERATE https://access.redhat.com/security/cve/CVE-2023-6134
epss 0.01411 https://api.first.org/data/v1/epss?cve=CVE-2023-6134
epss 0.01411 https://api.first.org/data/v1/epss?cve=CVE-2023-6134
epss 0.01411 https://api.first.org/data/v1/epss?cve=CVE-2023-6134
epss 0.01411 https://api.first.org/data/v1/epss?cve=CVE-2023-6134
epss 0.01411 https://api.first.org/data/v1/epss?cve=CVE-2023-6134
epss 0.01411 https://api.first.org/data/v1/epss?cve=CVE-2023-6134
epss 0.01411 https://api.first.org/data/v1/epss?cve=CVE-2023-6134
epss 0.01411 https://api.first.org/data/v1/epss?cve=CVE-2023-6134
epss 0.01836 https://api.first.org/data/v1/epss?cve=CVE-2023-6134
epss 0.01836 https://api.first.org/data/v1/epss?cve=CVE-2023-6134
epss 0.01836 https://api.first.org/data/v1/epss?cve=CVE-2023-6134
epss 0.01836 https://api.first.org/data/v1/epss?cve=CVE-2023-6134
epss 0.01836 https://api.first.org/data/v1/epss?cve=CVE-2023-6134
epss 0.01836 https://api.first.org/data/v1/epss?cve=CVE-2023-6134
epss 0.01836 https://api.first.org/data/v1/epss?cve=CVE-2023-6134
epss 0.01836 https://api.first.org/data/v1/epss?cve=CVE-2023-6134
epss 0.01836 https://api.first.org/data/v1/epss?cve=CVE-2023-6134
cvssv3.1 4.6 https://bugzilla.redhat.com/show_bug.cgi?id=2249673
generic_textual MODERATE https://bugzilla.redhat.com/show_bug.cgi?id=2249673
cvssv3.1_qr MODERATE https://github.com/advisories/GHSA-cvg2-7c3j-g36j
cvssv3.1 4.6 https://github.com/keycloak/keycloak
generic_textual MODERATE https://github.com/keycloak/keycloak
cvssv3.1 4.6 https://github.com/keycloak/keycloak/commit/15a21bf8e4fb71f006ba9caf25b9c9d1d152cd20
generic_textual MODERATE https://github.com/keycloak/keycloak/commit/15a21bf8e4fb71f006ba9caf25b9c9d1d152cd20
cvssv3.1 4.6 https://github.com/keycloak/keycloak/security/advisories/GHSA-cvg2-7c3j-g36j
cvssv3.1_qr MODERATE https://github.com/keycloak/keycloak/security/advisories/GHSA-cvg2-7c3j-g36j
generic_textual MODERATE https://github.com/keycloak/keycloak/security/advisories/GHSA-cvg2-7c3j-g36j
cvssv3.1 4.6 https://nvd.nist.gov/vuln/detail/CVE-2023-6134
cvssv3.1 5.4 https://nvd.nist.gov/vuln/detail/CVE-2023-6134
generic_textual MODERATE https://nvd.nist.gov/vuln/detail/CVE-2023-6134
Reference id Reference type URL
https://access.redhat.com/errata/RHSA-2023:7854
https://access.redhat.com/errata/RHSA-2023:7855
https://access.redhat.com/errata/RHSA-2023:7856
https://access.redhat.com/errata/RHSA-2023:7857
https://access.redhat.com/errata/RHSA-2023:7858
https://access.redhat.com/errata/RHSA-2023:7860
https://access.redhat.com/errata/RHSA-2023:7861
https://access.redhat.com/errata/RHSA-2024:0798
https://access.redhat.com/errata/RHSA-2024:0799
https://access.redhat.com/errata/RHSA-2024:0800
https://access.redhat.com/errata/RHSA-2024:0801
https://access.redhat.com/errata/RHSA-2024:0804
https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2023-6134.json
https://access.redhat.com/security/cve/CVE-2023-6134
https://api.first.org/data/v1/epss?cve=CVE-2023-6134
https://bugzilla.redhat.com/show_bug.cgi?id=2249673
https://github.com/keycloak/keycloak
https://github.com/keycloak/keycloak/commit/15a21bf8e4fb71f006ba9caf25b9c9d1d152cd20
https://github.com/keycloak/keycloak/security/advisories/GHSA-cvg2-7c3j-g36j
https://nvd.nist.gov/vuln/detail/CVE-2023-6134
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:*:*:*:*:*:*:*:*
cpe:2.3:a:redhat:single_sign-on:-:*:*:*:text-only:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:a:redhat:single_sign-on:-:*:*:*:text-only:*:*:*
GHSA-cvg2-7c3j-g36j https://github.com/advisories/GHSA-cvg2-7c3j-g36j
No exploits are available.
Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:L/A:N Found at https://access.redhat.com/errata/RHSA-2023:7854
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:L/UI:R/S:U/C:L/I:L/A:N Found at https://access.redhat.com/errata/RHSA-2023:7855
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:L/UI:R/S:U/C:L/I:L/A:N Found at https://access.redhat.com/errata/RHSA-2023:7856
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:L/UI:R/S:U/C:L/I:L/A:N Found at https://access.redhat.com/errata/RHSA-2023:7857
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:L/UI:R/S:U/C:L/I:L/A:N Found at https://access.redhat.com/errata/RHSA-2023:7858
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:L/UI:R/S:U/C:L/I:L/A:N Found at https://access.redhat.com/errata/RHSA-2023:7860
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:L/UI:R/S:U/C:L/I:L/A:N Found at https://access.redhat.com/errata/RHSA-2023:7861
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:L/UI:R/S:U/C:L/I:L/A:N Found at https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2023-6134.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:L/UI:R/S:U/C:L/I:L/A:N Found at https://access.redhat.com/security/cve/CVE-2023-6134
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:L/UI:R/S:U/C:L/I:L/A:N Found at https://bugzilla.redhat.com/show_bug.cgi?id=2249673
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:L/UI:R/S:U/C:L/I:L/A:N Found at https://github.com/keycloak/keycloak
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:L/UI:R/S:U/C:L/I:L/A:N Found at https://github.com/keycloak/keycloak/commit/15a21bf8e4fb71f006ba9caf25b9c9d1d152cd20
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:L/UI:R/S:U/C:L/I:L/A:N Found at https://github.com/keycloak/keycloak/security/advisories/GHSA-cvg2-7c3j-g36j
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:L/UI:R/S:U/C:L/I:L/A:N Found at https://nvd.nist.gov/vuln/detail/CVE-2023-6134
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:L/UI:R/S:C/C:L/I:L/A:N Found at https://nvd.nist.gov/vuln/detail/CVE-2023-6134
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 0.79698
EPSS Score 0.01411
Published At Aug. 10, 2025, 12:55 p.m.
Date Actor Action Source VulnerableCode Version
2025-07-31T08:42:34.493148+00:00 GithubOSV Importer Import https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2023/12/GHSA-cvg2-7c3j-g36j/GHSA-cvg2-7c3j-g36j.json 37.0.0