CVE-2026-2102

MEDIUM
MEDIUM Priority: 0.02 BB Relevance: 62/100
Published: 2026-11-02 Modified: 2026-11-02 First seen: 2026-11-02 Status: active

Attack Surface

Network Low Complexity No Auth Scope Change

CVSS Vector Breakdown

AV: Network
AC: Low
PR: None
UI: Required
S: Changed
C: Low
I: Low
A: None

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.

Affected Software (4)

VendorProductVersion
Wren Security wrensec-commons 0 < 22.6.2
Wren Security wrensec-commons 23.0.0-M1 < 23.0.0
Wren Security wrensec-commons 0 < 22.6.2
Wren Security wrensec-commons 23.0.0-M1 < 23.0.0

Bug Bounty Relevance

62 / 100
✓ Network accessible
✓ No authentication
✓ Low complexity

CVSS Score

6.1 / 10.0 v3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

EPSS — Exploitation Probability

0.27%
Raw Score 0.002730
Percentile 19.9%
Date 2026-11-13

EPSS Trend

2026-11-13
0.00273
2026-11-12
0.00273
2026-11-10
0.00273
2026-11-09
0.00273
2026-11-08
0.00273
2026-11-07
0.00273
2026-11-06
0.00273
2026-11-05
0.00273
2026-11-04
0.00273
2026-11-03
0.00273

Intelligence Sources

mitre ref →
nvd ref →