CVE-2022-4570Public exploitNetwork attack vector

Contributor-level script execution via unescaped block class

Published Jan 23, 2023 · Updated Apr 2, 2025

Stored XSS in Ajay D'Souza Top 10 before 3.2.3 allows remote authenticated users to execute script in administrators' browsers. The Popular Posts block returns its Additional CSS Classes attribute to page HTML without validating or escaping it, so a crafted quote breaks out of the class value and adds an event handler. Contributor access is sufficient to store the block, and execution requires a higher-privileged user to load the affected page and interact with it.

CVSS severity5.4
Medium
EPSS probability0.47%
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

Stored XSS in Ajay D'Souza Top 10 before 3.2.3 allows remote authenticated users to execute script in administrators' browsers. The Popular Posts block returns its Additional CSS Classes attribute to page HTML without validating or escaping it, so a crafted quote breaks out of the class value and adds an event handler. Contributor access is sufficient to store the block, and execution requires a higher-privileged user to load the affected page and interact with it.

The record

CVE
CVE-2022-4570
Published
Jan 23, 2023
Updated
Apr 2, 2025
Vendor
Ajay D'Souza
Product
Top 10
Classifications
CWE-79, T1203
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Jan 23, 2023CVE publishedPublication date reported by the CVE source.
  2. Apr 2, 2025Record 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 <3.2.3

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Ajay D'Souza · Top 10version=0 <3.2.3

Published CVSS scores

5.4CISA-ADPCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
5.4NIST NVDCVSS: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 exploitPublished

Weakness, pattern, technique

CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
T1203Exploitation for Client Execution

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