{"id":"CVE-2021-27786","aliases":["EUVD-2021-14527","GHSA-4326-c9xj-r26f"],"status":"published","title":"HCL OneTest Server is vulnerable to Cross Origin Resource Sharing:  Arbitrary Origin Trusted","description":"Cross-origin resource sharing (CORS) enables browsers to perform cross domain requests in a controlled manner. This request has an Origin header that identifies the domain that is making the initial request and defines the protocol between a browser and server to see if the request is allowed. An attacker can take advantage of this and possibly carry out privileged actions and access sensitive information when the Access-Control-Allow-Credentials is enabled.","severity":{"version":"3.1","score":4.6,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:L/A:N","level":"medium","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-09","score":0.00592,"percentile":0.48597,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-697","CWE-942"],"published":"2022-06-07T17:50:17Z","modified":"2026-06-17T03:45:27Z","products":[{"vendor":"hcl software","product":"hcl onetest server"},{"vendor":"hcltech","product":"onetest_server"}],"references":[{"url":"https://support.hcltechsw.com/csm?id=kb_article\u0026sysparm_article=KB0098603","tags":["x_refsource_MISC","x_transferred","Vendor Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-27786"},{"url":"https://github.com/advisories/GHSA-4326-c9xj-r26f"}],"sources":{"cve":[{"id":"CVE-2021-27786","title":"HCL OneTest Server is vulnerable to Cross Origin Resource Sharing:  Arbitrary Origin Trusted","description":"Cross-origin resource sharing (CORS) enables browsers to perform cross domain requests in a controlled manner. This request has an Origin header that identifies the domain that is making the initial request and defines the protocol between a browser and server to see if the request is allowed. An attacker can take advantage of this and possibly carry out privileged actions and access sensitive information when the Access-Control-Allow-Credentials is enabled.","status":"published","published":"2022-06-07T17:50:17.986Z","modified":"2024-09-16T21:04:10.396Z","cvss":[{"version":"3.1","score":4.6,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:L/A:N","level":"medium","assessor":"cna"}],"cwes":["CWE-942"],"updated_at":"2026-11-02T14:33:04.360272Z"}],"euvd":[{"id":"EUVD-2021-14527","description":"Cross-origin resource sharing (CORS) enables browsers to perform cross domain requests in a controlled manner. This request has an Origin header that identifies the domain that is making the initial request and defines the protocol between a browser and server to see if the request is allowed. An attacker can take advantage of this and possibly carry out privileged actions and access sensitive information when the Access-Control-Allow-Credentials is enabled.","status":"published","published":"2022-06-07T17:50:17Z","modified":"2024-09-16T21:04:10Z","cvss":[{"version":"3.1","score":4.6,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:L/A:N","level":"medium"}],"updated_at":"2026-11-03T00:55:08.578591Z"}],"ghsa":[{"id":"GHSA-4326-c9xj-r26f","title":"Cross-origin resource sharing (CORS) enables browsers to perform cross domain requests in a...","description":"Cross-origin resource sharing (CORS) enables browsers to perform cross domain requests in a controlled manner. This request has an Origin header that identifies the domain that is making the initial request and defines the protocol between a browser and server to see if the request is allowed. An attacker can take advantage of this and possibly carry out privileged actions and access sensitive information when the Access-Control-Allow-Credentials is enabled.","status":"published","published":"2022-06-10T00:00:54Z","modified":"2023-01-27T05:03:28Z","cvss":[{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical"}],"cwes":["CWE-697"],"updated_at":"2026-11-02T14:42:15.225524Z"}],"nvd":[{"id":"CVE-2021-27786","description":"Cross-origin resource sharing (CORS) enables browsers to perform cross domain requests in a controlled manner. This request has an Origin header that identifies the domain that is making the initial request and defines the protocol between a browser and server to see if the request is allowed. An attacker can take advantage of this and possibly carry out privileged actions and access sensitive information when the Access-Control-Allow-Credentials is enabled.","status":"published","published":"2022-06-09T17:15:08.56Z","modified":"2026-06-17T03:45:27.283Z","cvss":[{"version":"3.1","score":4.6,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:L/A:N","level":"medium","assessor":"secondary"},{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical","assessor":"primary"},{"version":"2.0","score":6.8,"vector":"AV:N/AC:M/Au:N/C:P/I:P/A:P","level":"medium","assessor":"primary"}],"cwes":["CWE-942","CWE-697"],"updated_at":"2026-11-02T14:07:06.501652Z"}]}}