CVE-2022-45849Network attack vector

Browser script execution via unescaped request parameter

Published Apr 16, 2023 · Updated Apr 28, 2026

Reflected XSS in Silkalns Activello 1.4.4 and earlier allows remote authenticated users to execute scripts in a victim's browser. The theme returns a request parameter in the generated page without sanitizing the input or escaping the output; public sources do not identify the parameter or code path. Subscriber-level access is required, and exploitation also requires a victim to follow a crafted request, exposing the browser context to script-controlled actions.

CVSS severity5.4
Medium
EPSS probability0.47%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Reflected XSS in Silkalns Activello 1.4.4 and earlier allows remote authenticated users to execute scripts in a victim's browser. The theme returns a request parameter in the generated page without sanitizing the input or escaping the output; public sources do not identify the parameter or code path. Subscriber-level access is required, and exploitation also requires a victim to follow a crafted request, exposing the browser context to script-controlled actions.

The record

CVE
CVE-2022-45849
Published
Apr 16, 2023
Updated
Apr 28, 2026
Vendor
Silkalns
Product
Activello
Classifications
CWE-79, CAPEC-591, T1059.007
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Apr 16, 2023CVE publishedPublication date reported by the CVE source.
  2. Apr 28, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

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

  1. Affected versionversion=n/a <=1.4.4

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Silkalns · Activelloversion=n/a <=1.4.4

Published CVSS scores

5.4PatchstackCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A: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
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
CAPEC-591Reflected XSS
T1059.007Command and Scripting Interpreter: JavaScript

Public exploit references

No public exploit references are available in this record.

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

Technologies

Your stack

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Your stack

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