Is CVE-2026-49276 actively exploited?

No active exploitation of CVE-2026-49276 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2026-49276 be exploited remotely?

Yes. CVE-2026-49276 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2026-49276?

CVE-2026-49276 has a CVSS score of 7.4 (HIGH).

HOME VULNERABILITIESCVE-2026-49276

HIGH

CVE-2026-49276

CWE-83Published: July 9, 2026· Updated: Jul 10, 2026

7.4

CVSS v3.1

EPSS:0.29%probability of exploitation in 30 daysPercentile:20.7th

Official Description

Kirby is an open-source content management system. Prior to 4.9.4 and 5.4.4, Kirby sites using the writer field in any blueprint allowed a scripting link to be included as the target of a link or email link in writer mark components, making the target clickable by the user who entered it and enabling self cross-site scripting in the Panel. This issue is fixed in versions 4.9.4 and 5.4.4.

NVD Source

Technical Analysis

CVE-2026-49276 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

Exploitation does not require any privileges, though user interaction (A) is needed, which slightly reduces the risk of mass automated attacks.

CVSS v3.1 Vector Breakdown

Exploitability

Attack VectorNetwork

Attack ComplexityHigh

Privileges Req.None

User InteractionA

ScopeX

Impact

Confidentiality

Integrity

Availability

CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:A/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X