CVE-2026-41456Public exploitNetwork attack vector

Victim-browser script execution via unescaped search terms

Published Apr 21, 2026 · Updated Apr 21, 2026

Reflected XSS in Bludit 3.20 and earlier allows remote attackers to execute JavaScript in a visitor's browser through a crafted search URL. The Alternative theme outputs getSearchTerm() directly into an HTML value attribute, while related URLs are emitted without HTML escaping. The search plugin must be active and a user must open or submit the malicious URL; the script then runs in the site's origin with the victim's permissions.

CVSS severity5.1
Medium
EPSS probability1.90%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
Coverage for this vulnerability

See if you're affected

Explore vulnerability checks for your environment with Hinoki.

Book a demo

Summary

What happened

Reflected XSS in Bludit 3.20 and earlier allows remote attackers to execute JavaScript in a visitor's browser through a crafted search URL. The Alternative theme outputs getSearchTerm() directly into an HTML value attribute, while related URLs are emitted without HTML escaping. The search plugin must be active and a user must open or submit the malicious URL; the script then runs in the site's origin with the victim's permissions.

The record

CVE
CVE-2026-41456
Published
Apr 21, 2026
Updated
Apr 21, 2026
Vendor
Bludit
Product
Bludit
Classifications
CWE-79, T1204.001
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Apr 21, 2026CVE publishedPublication date reported by the CVE source.
  2. Apr 21, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=0 <=3.20
  2. Affected versionversion=6732ddedda8b73ce0a017a1b6adf685100244e01

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Bludit · Bluditversion=0 <=3.20; version=6732ddedda8b73ce0a017a1b6adf685100244e01

Published CVSS scores

5.1VulnCheckCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
T1204.001User Execution: Malicious Link

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

See the directory against your own environment.

Your stack

Check the software in your environment

Book a demo to see how Hinoki identifies affected software and validates exploitability in your environment.

Book a demo