CVE-2022-4393Public exploitNetwork attack vector

Stored XSS via unescaped shortcode class attribute

Published Jan 9, 2023 · Updated Aug 3, 2024

Stored XSS in Avirtum ImageLinks 1.5.3 and earlier allows remote authenticated users to execute scripts via a crafted shortcode. The shortcode handler places the attacker-controlled class attribute into rendered image markup without sanitizing the value or escaping it for an HTML attribute. Contributor-level access is sufficient; the script runs when a visitor opens the injected post and moves the pointer over the image.

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

Stored XSS in Avirtum ImageLinks 1.5.3 and earlier allows remote authenticated users to execute scripts via a crafted shortcode. The shortcode handler places the attacker-controlled class attribute into rendered image markup without sanitizing the value or escaping it for an HTML attribute. Contributor-level access is sufficient; the script runs when a visitor opens the injected post and moves the pointer over the image.

The record

CVE
CVE-2022-4393
Published
Jan 9, 2023
Updated
Aug 3, 2024
Vendor
Avirtum
Product
ImageLinks – Interactive Image Builder with Hotspots
Classifications
CWE-79, T1059.007
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Jan 9, 2023CVE publishedPublication date reported by the CVE source.
  2. Aug 3, 2024Record 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=0 <=1.5.3

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Avirtum · ImageLinks – Interactive Image Builder with Hotspotsversion=0 <=1.5.3

Published CVSS scores

5.4NIST NVDCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
6.4Wordfence IntelligenceCVSS:3.1/AV:N/AC:L/PR:L/UI:N/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')
T1059.007JavaScript/JScript

Public exploit references

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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