CVE-2022-4752Public exploitNetwork attack vector

Contributor-level stored XSS via unescaped shortcode attributes

Published Feb 21, 2023 · Updated Mar 13, 2025

Stored XSS in Jannik Portz WordPress Opening Hours 2.3.0 and earlier allows remote authenticated users to execute script via shortcode attributes. The op-is-open shortcode places its classes attribute into page output without validation or escaping, allowing injected event-handler markup to persist. Contributor-level access and a configured Set are required, and a visitor must interact with the rendered element to trigger script execution in that visitor's browser.

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 Jannik Portz WordPress Opening Hours 2.3.0 and earlier allows remote authenticated users to execute script via shortcode attributes. The op-is-open shortcode places its classes attribute into page output without validation or escaping, allowing injected event-handler markup to persist. Contributor-level access and a configured Set are required, and a visitor must interact with the rendered element to trigger script execution in that visitor's browser.

The record

CVE
CVE-2022-4752
Published
Feb 21, 2023
Updated
Mar 13, 2025
Vendor
Jannik Portz
Product
WordPress Opening Hours
Classifications
CWE-79, T1203
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Feb 21, 2023CVE publishedPublication date reported by the CVE source.
  2. Mar 13, 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 <=2.3.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Jannik Portz · WordPress Opening Hoursversion=0 <=2.3.0

Published CVSS scores

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')
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

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Your stack

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