CVE-2026-2102 (GCVE-0-2026-2102)
Vulnerability from cvelistv5 – Published: 2026-11-02 15:26 – Updated: 2026-11-02 16:14
VLAI
EPSS
VEX
Title
XSS in wrensec-commons CREST framework HTTP binding via _mimeType parameter
Summary
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
6.1 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-11-02 16:14 UTC
CWE
- CWE-79 - Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Assigner
References
3 references
| URL | Tags |
|---|---|
| https://github.com/WrenSecurity/wrensec-commons/s… | third-party-advisory |
| https://github.com/WrenSecurity/wrensec-commons/c… | patch |
| https://github.com/WrenSecurity/wrensec-commons/c… | patch |
Impacted products
1 product
| Vendor | Product | Version | CPE status | |
|---|---|---|---|---|
| Wren Security | wrensec-commons |
Affected:
0 , < 22.6.2
(semver)
Affected: 23.0.0-M1 , < 23.0.0 (semver) |
guessed |
Date Public
2026-11-02 15:00
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