CVE-2026-115548

Description

The Quttera ThreatSign – Web Malware Scanner for WordPress plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'HTTP_USER_AGENT' parameter in all versions up to, and including, 4.1.0.48 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that will execute whenever an administrator accesses an injected page.

Overview

State: PUBLISHED
Assigner (CNA): Wordfence
CVSS severity: HIGH
CVSS score: 7.2 / 10
CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N
Effective score: 7.2 / 10 HIGH source: CNA overview
CWE(s): CWE-79
Reserved: 2026-10-22
Published: 2026-11-07 11:26 UTC
Last updated: 2026-11-07 18:05 UTC
Source: https://raw.githubusercontent.com/CVEProject/cvelistV5/main/cves/2026/115xxx/CVE-2026-115548.json
Linked Threat: CVE-2026-115548 — Quttera ThreatSign <= 4.1.0.48 - Unauthenticated Stored Cross-Site Scripting via User-Agent Header

Affected products (1)

Vendor	Product	Versions	Platforms
quttera	Quttera ThreatSign – Web Malware Scanner for WordPress	`0` (affected)	—

Vendor references (6)

References embedded in the original CVE record by the assigning CNA.

Web references (0)

DuckDuckGo results ranked by threat-intel / vendor advisory domains. Generated by the 🔎 Find references (web) button above — same flow as the Remediations search.

No web references attached yet.

Indicators (1)

IOCs linked to the auto-promoted Threat row.

Type	Value	VirusTotal	Attached
cve	`CVE-2026-115548`	no local data	2026-11-07 00:23 UTC

Remediations (9)

Remediations are stored against the linked Threat row; the list below is deduplicated across both pages.

October 2026 Critical Patch Update Released | security

web:blogs.oracle.com

For more information about the Critical Patch Update program, see the security vulnerability remediation practices page located on the Oracle Trust Center.

2026-11-07 00:24 UTC
September 2026 Critical Security Patch Update Released

web:blogs.oracle.com

For more information about the Critical Security Patch Update program, see the security vulnerability remediation practices page located on the Oracle Trust Center.

2026-11-07 00:24 UTC
CVE Vulnerabilities 2026: Critical Flaws & Fixes Hub

web:cyberupdates365.com

Track critical CVE vulnerabilities 2026 with verified enterprise patch guides. Fix zero-days across VMware, WordPress, Windows, and cloud infrastructure.

2026-11-07 00:24 UTC
GitHub - secureIT-project/CVEfixes: CVEfixes: Automated Collection of ...

web:github.com

CVEfixes: Automated Collection of Vulnerabilities and Their Fixes from Open-Source Software - secureIT-project/CVEfixes

2026-11-07 00:24 UTC
Cisco Meraki Security Hardening Release: October 2026

web:sec.cloudapps.cisco.com

As part of Cisco's ongoing commitment to proactive security and product quality, engineering teams conducted a comprehensive internal security review. This review resulted in software hardening releases that address multiple internally discovered vulnerabilities. These vulnerabilities were found during internal testing and are not known to be actively exploited. To assist customers in patching ...

2026-11-07 00:24 UTC
Oracle Critical Patch Update Advisory - July 2026

web:www.oracle.com

This Critical Patch Update contains 1448 new security patches across the product families listed below. Please note that a My Oracle Support (MOS) note summarizing the content of this Critical Patch Update and other Oracle Software Security Assurance activities is located at July 2026 Critical Patch Update: Executive Summary and Analysis.

2026-11-07 00:24 UTC
Oracle Critical Security Patch Update Advisory - September 2026

web:www.oracle.com

Oracle Database Server Client-Only Installations The following Oracle Database Server vulnerabilities included in this Critical Security Patch Update affect client-only installations: CVE - 2026 -83348 and CVE - 2026 -83156. Oracle Autonomous Health Framework Risk Matrix This Critical Security Patch Update contains 2 new security patches, plus additional third party patches noted below, for Oracle ...

2026-11-07 00:24 UTC
CVE-2026-11548: Vulnerability Details - Analysis & Fix | TheHackerWire

web:www.thehackerwire.com

How do I fix or mitigate CVE - 2026 -11548? To protect against CVE - 2026 -11548, you should: (1) Apply the latest security patches from the vendor, (2) Check official security advisories for specific remediation steps, (3) Update affected software to the latest version, and (4) Monitor your systems for any signs of exploitation.

2026-11-07 00:24 UTC
Wordfence remediation: Quttera ThreatSign – Web Malware Scanner for WordPress

Wordfence

Update to version 4.1.0.49, or a newer patched version

2026-11-07 00:23 UTC

AI Forensic Analysis

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Raw JSON

The full cvelistV5 record. Download as CVE-2026-115548.json.

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                  },
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                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-11-07T17:58:55.593798Z",
                "version": "2.0.3"
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