CVE-2022-4650Public exploitNetwork attack vector

Stored XSS via unescaped shortcode target attribute

Published Jan 23, 2023 · Updated Apr 3, 2025

Stored XSS in DevItems HashBar before 1.3.6 allows remote authenticated users to execute scripts in visitors' browsers via a shortcode. The hashbar_btn shortcode accepts a crafted btn_target attribute and renders it without validation or output escaping. Contributor-level access is sufficient to store the payload, which runs when a user views the affected page and can act within that user's browser session.

CVSS severity5.4
Medium
EPSS probability0.53%
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 DevItems HashBar before 1.3.6 allows remote authenticated users to execute scripts in visitors' browsers via a shortcode. The hashbar_btn shortcode accepts a crafted btn_target attribute and renders it without validation or output escaping. Contributor-level access is sufficient to store the payload, which runs when a user views the affected page and can act within that user's browser session.

The record

CVE
CVE-2022-4650
Published
Jan 23, 2023
Updated
Apr 3, 2025
Vendor
DevItems
Product
HashBar
Classifications
CWE-79, T1189
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Jan 23, 2023CVE publishedPublication date reported by the CVE source.
  2. Apr 3, 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 <1.3.6

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

DevItems · HashBarversion=0 <1.3.6

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 National Vulnerability DatabaseCVSS: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')
T1189Drive-by Compromise

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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