What is the CVSS score of CVE-2026-27353?

CVE-2026-27353 has a CVSS 3.1 base score of 7.1 (High). CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:L. EPSS exploitation probability: 0.0%.

Which versions of ThemeGoods Grand News are affected by CVE-2026-27353?

A reflected cross-site scripting (XSS) vulnerability in ThemeGoods Grand News affects all installations running version 3.4.3 and below, allowing attackers to inject malicious scripts that compromise…

How to fix or mitigate CVE-2026-27353?

Within 24 hours: Identify all affected Grand News installations and document version numbers; implement Web Application Firewall (WAF) rules to block XSS payloads on affected endpoints. Within 7 days: Disable Grand News plugin functionality if business-critical patches remain unavailable, or isolate affected instances to non-public environments. Within 30 days: Monitor vendor security advisories for patch release; conduct security assessment of compromised user accounts if exploitation is suspected; prepare migration plan to alternative theme/plugin if vendor does not release timely patch.

ThemeGoods Grand News CVE-2026-27353

HIGH

Cross-site Scripting (XSS) (CWE-79)

2026-03-05 audit@patchstack.com

XSS

7.1

CVSS 3.1 · NVD

Severity by source

NVD PRIMARY

7.1 HIGH

AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:L

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:L

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

Required

Scope

Changed

Confidentiality

Low

Integrity

Low

Availability

Low

Lifecycle Timeline

Re-analysis Queued

Apr 22, 2026 - 21:37 vuln.today

cvss_changed

Analysis Generated

Mar 12, 2026 - 22:06 vuln.today

CVE Published

Mar 05, 2026 - 06:16 nvd

HIGH 7.1

DescriptionCVE.org

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in ThemeGoods Grand News grandnews allows Reflected XSS.This issue affects Grand News: from n/a through <= 3.4.3.

AnalysisAI

Reflected cross-site scripting in ThemeGoods Grand News version 3.4.3 and earlier enables attackers to inject malicious scripts into web pages viewed by users, potentially allowing credential theft or session hijacking. The vulnerability requires user interaction to trigger but can be exploited remotely without authentication. No patch is currently available.

Technical ContextAI

Classified as CWE-79 (Cross-site Scripting (XSS)). Affects ThemeGoods Grand News grandnews. Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in ThemeGoods Grand News grandnews allows Reflected XSS.This issue affects Grand News: from n/a through <= 3.4.3.

Affected ProductsAI

Product: ThemeGoods Grand News grandnews.

RemediationAI

Monitor vendor advisories for a patch. Implement output encoding and Content Security Policy headers. Restrict network access to the affected service where possible.