CVE-2022-4509Public exploitNetwork attack vector

Stored XSS via unescaped shortcode class attribute

Published Jan 23, 2023 · Updated Apr 2, 2025

Stored XSS in Code Atlantic Content Control before 1.1.10 allows remote authenticated users to inject scripts through shortcode attributes. The content_control shortcode writes its class attribute into page markup without correctly escaping attacker-controlled quotes, so injected event-handler markup persists in a post. Contributor privileges are sufficient, and the script runs when a higher-privileged user views the affected page.

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 Code Atlantic Content Control before 1.1.10 allows remote authenticated users to inject scripts through shortcode attributes. The content_control shortcode writes its class attribute into page markup without correctly escaping attacker-controlled quotes, so injected event-handler markup persists in a post. Contributor privileges are sufficient, and the script runs when a higher-privileged user views the affected page.

The record

CVE
CVE-2022-4509
Published
Jan 23, 2023
Updated
Apr 2, 2025
Vendor
Code Atlantic
Product
Content Control
Classifications
CWE-79, T1059.007
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

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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 <1.1.10

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Code Atlantic · Content Controlversion=0 <1.1.10

Published CVSS scores

6.4WordfenceCVSS:3.1/AV:N/AC:L/PR:L/UI:N/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
5.4CISA-ADPCVSS: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')
T1059.007Command and Scripting Interpreter: JavaScript/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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