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Home / Vulnerability Intelligence / CVE-2026-42612

CVE-2026-42612 - Vulnerability Analysis

HighCVSS: 8.5

Last Updated: May 12, 2026

Grav - Stored XSS

Published: May 11, 2026Updated: May 12, 2026PoC AvailableRemote Exploitable

Overview

Grav < 2.0.0-beta.2 contains a stored XSS caused by blacklist bypass in detectXss() function handling unquoted HTML event attributes, letting publisher-level attackers execute arbitrary JavaScript, exploit requires publisher-level access.

Severity & Score

Severity: High
CVSS Score: 8.5
EPSS Score: 3.2%(Probability of exploitation in next 30 days)

Impact

Publisher-level attackers can execute arbitrary JavaScript, potentially leading to session hijacking or further attacks on users.

Mitigation

Update to version 2.0.0-beta.2 or later.

Social Media Activity(2 posts)

TheHackerWire
TheHackerWire
@thehackerwire
May 11, 2026

🟠 CVE-2026-42612 - High (8.5) Grav is a file-based Web platform. Prior to 2.0.0-beta.2, a stored Cross-Site Scripting (XSS) vulnerability in getgrav/grav allows publisher-level accounts to execute arbitrary JavaScript. The issue arises from a blacklist bypass in the detectXss(... šŸ”— https://www.thehackerwire.com/vulnerability/CVE-2026-42612/ #CVE #vulnerability #infosec #cybersecurity #security #Tenda #patchstack

View original post
TheHackerWire
TheHackerWire
@thehackerwire
May 11, 2026

🟠 CVE-2026-42612 - High (8.5) Grav is a file-based Web platform. Prior to 2.0.0-beta.2, a stored Cross-Site Scripting (XSS) vulnerability in getgrav/grav allows publisher-level accounts to execute arbitrary JavaScript. The issue arises from a blacklist bypass in the detectXss(... šŸ”— https://www.thehackerwire.com/vulnerability/CVE-2026-42612/ #CVE #vulnerability #infosec #cybersecurity #security #Tenda #patchstack

View original post

Details

CVE ID
CVE-2026-42612
Severity
High
CVSS Score
8.5
Type
stored_xss
Status
confirmed
EPSS
3.2%
Social Posts
2

CWE

  • CWE-79

CVSS Metrics

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

EPSS Score

3.2%Probability of exploitation in the next 30 days