{"id":"CVE-2026-2102","aliases":["EUVD-2026-115250","GHSA-4vhv-49g2-496q"],"status":"published","title":"XSS in wrensec-commons CREST framework HTTP binding via _mimeType parameter","description":"wrensec-commons contains a reflected cross-site scripting (XSS) vulnerability in the CREST framework's HTTP binding. The HttpUtils.prepareResponse() method used the _mimeType request parameter to set the Content-Type response header without proper sanitization. By sending a GET request with _mimeType=text/html, an attacker could cause the browser to interpret a CREST JSON response as HTML, enabling execution of arbitrary JavaScript in the victim's browser. The vulnerability is exploitable by tricking a user into visiting a crafted URL targeting any deployed CREST endpoint. The issue is fixed in versions 22.6.2 and 23.0.0.","severity":{"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":"cna","from":"cve"},"epss":{"day":"2026-11-08","score":0.00273,"percentile":0.19752,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-79"],"published":"2026-11-02T15:26:54Z","modified":"2026-11-04T02:47:33Z","products":[{"vendor":"wren security","product":"wrensec-commons"}],"references":[{"url":"https://github.com/WrenSecurity/wrensec-commons/security/advisories/GHSA-4vhv-49g2-496q","tags":["third-party-advisory","advisory"]},{"url":"https://github.com/WrenSecurity/wrensec-commons/commit/65bbfd8c63c42e84ff7699aa5b82a22c08a12624","tags":["patch","fix"]},{"url":"https://github.com/WrenSecurity/wrensec-commons/commit/5b50c64c14943b6f4d7faf996345e603956bae1d","tags":["patch","fix"]},{"url":"https://github.com/WrenSecurity/wrensec-commons/","tags":["web"]},{"url":"https://repo1.maven.org/maven2","tags":["web"]},{"url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/2xxx/CVE-2026-2102.json","tags":["advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-2102","tags":["advisory"]}],"sources":{"cve":[{"id":"CVE-2026-2102","title":"XSS in wrensec-commons CREST framework HTTP binding via _mimeType parameter","description":"wrensec-commons contains a reflected cross-site scripting (XSS) vulnerability in the CREST framework's HTTP binding. The HttpUtils.prepareResponse() method used the _mimeType request parameter to set the Content-Type response header without proper sanitization. By sending a GET request with _mimeType=text/html, an attacker could cause the browser to interpret a CREST JSON response as HTML, enabling execution of arbitrary JavaScript in the victim's browser. The vulnerability is exploitable by tricking a user into visiting a crafted URL targeting any deployed CREST endpoint. The issue is fixed in versions 22.6.2 and 23.0.0.","status":"published","published":"2026-11-02T15:26:54.677Z","modified":"2026-11-02T16:14:41.537Z","cvss":[{"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":"cna"}],"cwes":["CWE-79"],"updated_at":"2026-11-02T18:00:08.034842Z"}],"euvd":[{"id":"EUVD-2026-115250","description":"wrensec-commons contains a reflected cross-site scripting (XSS) vulnerability in the CREST framework's HTTP binding. The HttpUtils.prepareResponse() method used the _mimeType request parameter to set the Content-Type response header without proper sanitization. By sending a GET request with _mimeType=text/html, an attacker could cause the browser to interpret a CREST JSON response as HTML, enabling execution of arbitrary JavaScript in the victim's browser. The vulnerability is exploitable by tricking a user into visiting a crafted URL targeting any deployed CREST endpoint. The issue is fixed in versions 22.6.2 and 23.0.0.","status":"published","published":"2026-11-02T15:26:54Z","modified":"2026-11-02T16:14:41Z","cvss":[{"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":"2026-11-03T05:08:40.251173Z"}],"nvd":[{"id":"CVE-2026-2102","description":"wrensec-commons contains a reflected cross-site scripting (XSS) vulnerability in the CREST framework's HTTP binding. The HttpUtils.prepareResponse() method used the _mimeType request parameter to set the Content-Type response header without proper sanitization. By sending a GET request with _mimeType=text/html, an attacker could cause the browser to interpret a CREST JSON response as HTML, enabling execution of arbitrary JavaScript in the victim's browser. The vulnerability is exploitable by tricking a user into visiting a crafted URL targeting any deployed CREST endpoint. The issue is fixed in versions 22.6.2 and 23.0.0.","status":"published","published":"2026-11-02T16:17:40.697Z","modified":"2026-11-02T17:17:43.96Z","cvss":[{"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":"secondary"}],"cwes":["CWE-79"],"updated_at":"2026-11-02T20:51:44.219211Z"}],"osv":[{"id":"CVE-2026-2102","title":"XSS in wrensec-commons CREST framework HTTP binding via _mimeType parameter","description":"wrensec-commons contains a reflected cross-site scripting (XSS) vulnerability in the CREST framework's HTTP binding. The HttpUtils.prepareResponse() method used the _mimeType request parameter to set the Content-Type response header without proper sanitization. By sending a GET request with _mimeType=text/html, an attacker could cause the browser to interpret a CREST JSON response as HTML, enabling execution of arbitrary JavaScript in the victim's browser. The vulnerability is exploitable by tricking a user into visiting a crafted URL targeting any deployed CREST endpoint. The issue is fixed in versions 22.6.2 and 23.0.0.","status":"published","published":"2026-11-02T15:26:54.677Z","modified":"2026-11-04T07:07:46.143425202Z","cvss":[{"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"}],"cwes":["CWE-79"],"updated_at":"2026-11-04T07:32:23.735279Z"}]}}