{"id":"CVE-2023-45683","aliases":["EUVD-2023-2615","GHSA-267v-3v32-g6q5","GO-2023-2114","UBUNTU-CVE-2023-45683","openSUSE-SU-2025:14663-1"],"status":"published","title":"Cross site scripting via missing binding syntax validation In ACS location in github.com/crewjam/saml","description":"github.com/crewjam/saml is a saml library for the go language. In affected versions the package does not validate the ACS Location URI according to the SAML binding being parsed. If abused, this flaw allows attackers to register malicious Service Providers at the IdP and inject Javascript in the ACS endpoint definition, achieving Cross-Site-Scripting (XSS) in the IdP context during the redirection at the end of a SAML SSO Flow. Consequently, an attacker may perform any authenticated action as the victim once the victim’s browser loaded the SAML IdP initiated SSO link for the malicious service provider. Note: SP registration is commonly an unrestricted operation in IdPs, hence not requiring particular permissions or publicly accessible to ease the IdP interoperability. This issue is fixed in version 0.4.14. Users unable to upgrade may perform external validation of URLs provided in SAML metadata, or restrict the ability for end-users to upload arbitrary metadata.","severity":{"version":"3.1","score":7.1,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:L","level":"high","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-09","score":0.00485,"percentile":0.42022,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-79"],"published":"2023-10-16T18:13:10Z","modified":"2026-10-28T02:30:46Z","fixes":[{"ecosystem":"Go","package":"github.com/crewjam/saml","fixed_in":["0.4.14"],"sources":["ghsa","osv"]}],"affected":[{"source":"ghsa","ecosystem":"Go","package":"github.com/crewjam/saml","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0.4.14"}]}]},{"source":"osv","ecosystem":"Go","package":"github.com/crewjam/saml","ranges":[{"type":"SEMVER","events":[{"introduced":"0"},{"fixed":"0.4.14"}]}]},{"source":"osv","ecosystem":"Go","package":"github.com/crewjam/saml","ranges":[{"type":"SEMVER","events":[{"introduced":"0"},{"fixed":"0.4.14"}]}]},{"source":"osv","ecosystem":"Ubuntu:22.04:LTS","package":"golang-github-crewjam-saml","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["0.4.5+git20201228.07f15a6-2","0.4.6-1","0.4.6-2"]},{"source":"osv","ecosystem":"Ubuntu:24.04:LTS","package":"golang-github-crewjam-saml","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["0.4.12-2"]},{"source":"osv","ecosystem":"openSUSE:Tumbleweed","package":"velociraptor","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0.7.0.4.git142.862ef23-1.1"}]}],"bundled":27}],"products":[{"vendor":"crewjam","product":"saml"},{"vendor":"saml_project","product":"saml"}],"references":[{"url":"https://github.com/crewjam/saml/security/advisories/GHSA-267v-3v32-g6q5","tags":["x_refsource_CONFIRM","x_transferred","Vendor Advisory","advisory","web","report"]},{"url":"https://github.com/crewjam/saml/commit/b07b16cf83c4171d16da4d85608cb827f183cd79","tags":["x_refsource_MISC","x_transferred","Patch","fix","web"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2023-45683","tags":["advisory"]},{"url":"https://github.com/advisories/GHSA-267v-3v32-g6q5"},{"url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/45xxx/CVE-2023-45683.json","tags":["advisory"]},{"url":"https://github.com/crewjam/saml","tags":["package"]},{"url":"https://ubuntu.com/security/CVE-2023-45683","tags":["report"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2023-45683","tags":["report"]},{"url":"https://lists.opensuse.org/archives/list/security-announce@lists.opensuse.org/thread/IL7QOYRPFRGRS6UKU6ZYHI76FWFFUJNK/","tags":["advisory"]},{"url":"https://www.suse.com/security/cve/CVE-2023-1732","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2023-44270","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2023-45133","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2023-45683","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2023-46234","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2024-21538","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2024-23331","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2024-24786","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2024-28180","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2024-31207","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2024-37298","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2024-4067","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2024-4068","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2024-42459","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2024-42460","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2024-42461","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2024-45296","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2024-45338","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2024-45811","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2024-45812","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2024-47068","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2024-47875","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2024-48948","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2024-48949","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2024-51744","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2024-55565","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2024-6104","tags":["web"]}],"sources":{"cve":[{"id":"CVE-2023-45683","title":"Cross site scripting via missing binding syntax validation In ACS location in github.com/crewjam/saml","description":"github.com/crewjam/saml is a saml library for the go language. In affected versions the package does not validate the ACS Location URI according to the SAML binding being parsed. If abused, this flaw allows attackers to register malicious Service Providers at the IdP and inject Javascript in the ACS endpoint definition, achieving Cross-Site-Scripting (XSS) in the IdP context during the redirection at the end of a SAML SSO Flow. Consequently, an attacker may perform any authenticated action as the victim once the victim’s browser loaded the SAML IdP initiated SSO link for the malicious service provider. Note: SP registration is commonly an unrestricted operation in IdPs, hence not requiring particular permissions or publicly accessible to ease the IdP interoperability. This issue is fixed in version 0.4.14. Users unable to upgrade may perform external validation of URLs provided in SAML metadata, or restrict the ability for end-users to upload arbitrary metadata.","status":"published","published":"2023-10-16T18:13:10.451Z","modified":"2024-09-13T19:38:10.391Z","cvss":[{"version":"3.1","score":7.1,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:L","level":"high","assessor":"cna"}],"cwes":["CWE-79"],"updated_at":"2026-11-02T14:35:22.984825Z"}],"euvd":[{"id":"EUVD-2023-2615","description":"github.com/crewjam/saml is a saml library for the go language. In affected versions the package does not validate the ACS Location URI according to the SAML binding being parsed. If abused, this flaw allows attackers to register malicious Service Providers at the IdP and inject Javascript in the ACS endpoint definition, achieving Cross-Site-Scripting (XSS) in the IdP context during the redirection at the end of a SAML SSO Flow. Consequently, an attacker may perform any authenticated action as the victim once the victim’s browser loaded the SAML IdP initiated SSO link for the malicious service provider. Note: SP registration is commonly an unrestricted operation in IdPs, hence not requiring particular permissions or publicly accessible to ease the IdP interoperability. This issue is fixed in version 0.4.14. Users unable to upgrade may perform external validation of URLs provided in SAML metadata, or restrict the ability for end-users to upload arbitrary metadata.","status":"published","published":"2023-10-16T18:13:10Z","modified":"2024-09-13T19:38:10Z","cvss":[{"version":"3.1","score":7.1,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:L","level":"high"}],"updated_at":"2026-11-03T00:55:55.02611Z"}],"ghsa":[{"id":"GHSA-267v-3v32-g6q5","title":"Cross-site Scripting via missing Binding syntax validation","description":"### Impact\n\nThe package does not validate the ACS Location URI according to the SAML binding being parsed.\n\nIf abused, this flaw allows attackers to register malicious Service Providers at the IdP and inject Javascript in the ACS endpoint definition, achieving Cross-Site-Scripting (XSS) in the IdP context during the redirection at the end of a SAML SSO Flow.\n\nConsequently, an attacker may perform any authenticated action as the victim once the victim’s browser loaded the SAML IdP initiated SSO link for the malicious service provider.\n\nNote: The severity is considered “High” because the SP registration is commonly an unrestricted operation in IdPs, hence not requiring particular permissions or publicly accessible to ease the IdP interoperability.\n\n### Patches\n\nThis issue is fixed in 0.4.14\n\n### Workarounds\n\nUsers of the package can perform external validation of URLs provided in SAML metadata, or restrict the ability for end-users to upload arbitrary metadata. \n\n### References\n\nThis issue was reported by Francesco Lacerenza from Doyensec.\n","status":"published","published":"2023-10-17T14:20:59Z","modified":"2023-11-11T05:01:27Z","cvss":[{"version":"3.1","score":7.1,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:L","level":"high"}],"cwes":["CWE-79"],"updated_at":"2026-11-02T14:37:19.438667Z"}],"nvd":[{"id":"CVE-2023-45683","description":"github.com/crewjam/saml is a saml library for the go language. In affected versions the package does not validate the ACS Location URI according to the SAML binding being parsed. If abused, this flaw allows attackers to register malicious Service Providers at the IdP and inject Javascript in the ACS endpoint definition, achieving Cross-Site-Scripting (XSS) in the IdP context during the redirection at the end of a SAML SSO Flow. Consequently, an attacker may perform any authenticated action as the victim once the victim’s browser loaded the SAML IdP initiated SSO link for the malicious service provider. Note: SP registration is commonly an unrestricted operation in IdPs, hence not requiring particular permissions or publicly accessible to ease the IdP interoperability. This issue is fixed in version 0.4.14. Users unable to upgrade may perform external validation of URLs provided in SAML metadata, or restrict the ability for end-users to upload arbitrary metadata.","status":"published","published":"2023-10-16T19:15:11.253Z","modified":"2026-06-17T06:29:21.597Z","cvss":[{"version":"3.1","score":7.1,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:L","level":"high","assessor":"secondary"},{"version":"3.1","score":6.1,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N","level":"medium","assessor":"primary"}],"cwes":["CWE-79"],"updated_at":"2026-11-02T14:08:37.83429Z"}],"osv":[{"id":"CVE-2023-45683","title":"Cross site scripting via missing binding syntax validation In ACS location in github.com/crewjam/saml","description":"github.com/crewjam/saml is a saml library for the go language. In affected versions the package does not validate the ACS Location URI according to the SAML binding being parsed. If abused, this flaw allows attackers to register malicious Service Providers at the IdP and inject Javascript in the ACS endpoint definition, achieving Cross-Site-Scripting (XSS) in the IdP context during the redirection at the end of a SAML SSO Flow. Consequently, an attacker may perform any authenticated action as the victim once the victim’s browser loaded the SAML IdP initiated SSO link for the malicious service provider. Note: SP registration is commonly an unrestricted operation in IdPs, hence not requiring particular permissions or publicly accessible to ease the IdP interoperability. This issue is fixed in version 0.4.14. Users unable to upgrade may perform external validation of URLs provided in SAML metadata, or restrict the ability for end-users to upload arbitrary metadata.","status":"published","published":"2023-10-16T18:13:10.451Z","modified":"2026-10-28T02:30:46.618599701Z","cvss":[{"version":"3.1","score":7.1,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:L","level":"high"}],"cwes":["CWE-79"],"updated_at":"2026-11-02T15:44:34.287121Z"},{"id":"GHSA-267v-3v32-g6q5","title":"Cross-site Scripting via missing Binding syntax validation","description":"### Impact\n\nThe package does not validate the ACS Location URI according to the SAML binding being parsed.\n\nIf abused, this flaw allows attackers to register malicious Service Providers at the IdP and inject Javascript in the ACS endpoint definition, achieving Cross-Site-Scripting (XSS) in the IdP context during the redirection at the end of a SAML SSO Flow.\n\nConsequently, an attacker may perform any authenticated action as the victim once the victim’s browser loaded the SAML IdP initiated SSO link for the malicious service provider.\n\nNote: The severity is considered “High” because the SP registration is commonly an unrestricted operation in IdPs, hence not requiring particular permissions or publicly accessible to ease the IdP interoperability.\n\n### Patches\n\nThis issue is fixed in 0.4.14\n\n### Workarounds\n\nUsers of the package can perform external validation of URLs provided in SAML metadata, or restrict the ability for end-users to upload arbitrary metadata. \n\n### References\n\nThis issue was reported by Francesco Lacerenza from Doyensec.\n","status":"published","published":"2023-10-17T14:20:59Z","modified":"2026-09-10T03:50:03.374675616Z","cvss":[{"version":"3.1","score":7.1,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:L","level":"high"}],"cwes":["CWE-79"],"updated_at":"2026-11-02T15:46:33.956911Z"},{"id":"UBUNTU-CVE-2023-45683","description":"github.com/crewjam/saml is a saml library for the go language. In affected versions the package does not validate the ACS Location URI according to the SAML binding being parsed. If abused, this flaw allows attackers to register malicious Service Providers at the IdP and inject Javascript in the ACS endpoint definition, achieving Cross-Site-Scripting (XSS) in the IdP context during the redirection at the end of a SAML SSO Flow. Consequently, an attacker may perform any authenticated action as the victim once the victim’s browser loaded the SAML IdP initiated SSO link for the malicious service provider. Note: SP registration is commonly an unrestricted operation in IdPs, hence not requiring particular permissions or publicly accessible to ease the IdP interoperability. This issue is fixed in version 0.4.14. Users unable to upgrade may perform external validation of URLs provided in SAML metadata, or restrict the ability for end-users to upload arbitrary metadata.","status":"published","published":"2023-10-16T19:15:00Z","modified":"2025-09-08T16:56:32Z","cvss":[{"version":"3.1","score":7.1,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:L","level":"high"},{"version":"3.1","score":6.1,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N","level":"medium"}],"updated_at":"2026-11-02T16:54:22.741943Z"},{"id":"GO-2023-2114","title":"Cross-site scripting via missing binding syntax validation in github.com/crewjam/saml","description":"The package does not validate the ACS Location URI according to the SAML binding being parsed. If abused, this flaw allows attackers to register malicious Service Providers at the IdP and inject Javascript in the ACS endpoint definition, achieving Cross-Site-Scripting (XSS) in the IdP context during the redirection at the end of a SAML SSO Flow. Consequently, an attacker may perform any authenticated action as the victim once the victim's browser loads the SAML IdP initiated SSO link for the malicious service provider.","status":"published","published":"2023-10-24T16:45:15Z","modified":"2024-05-20T16:03:47Z","updated_at":"2026-11-02T15:47:01.185262Z"},{"id":"openSUSE-SU-2025:14663-1","title":"velociraptor-0.7.0.4.git142.862ef23-1.1 on GA media","description":"These are all security issues fixed in the velociraptor-0.7.0.4.git142.862ef23-1.1 package on the GA media of openSUSE Tumbleweed.","status":"published","published":"2025-01-17T00:00:00Z","modified":"2026-02-04T03:47:20.18775Z","updated_at":"2026-11-02T16:58:36.976155Z"}]}}