CVE-2021-24157Public exploitNetwork attack vector

Stored XSS via unchecked script capability

Published Apr 5, 2021 · Updated Aug 3, 2024

Stored XSS in ThemeIsle Orbit Fox 2.10.2 and earlier allows remote authenticated users to inject JavaScript into posts. Header and footer script fields save script tags into post metadata without verifying the unfiltered_html capability. Contributor or Author access is required, and the stored script executes when a visitor opens the affected post, enabling content changes or administrative account creation.

CVSS severity6.4
Medium
EPSS probability0.69%
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 ThemeIsle Orbit Fox 2.10.2 and earlier allows remote authenticated users to inject JavaScript into posts. Header and footer script fields save script tags into post metadata without verifying the unfiltered_html capability. Contributor or Author access is required, and the stored script executes when a visitor opens the affected post, enabling content changes or administrative account creation.

The record

CVE
CVE-2021-24157
Published
Apr 5, 2021
Updated
Aug 3, 2024
Vendor
Query Solutions Ltd.
Product
Orbit Fox
Classifications
CWE-79, T1565.001
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Apr 5, 2021CVE 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

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=2.10.3 <2.10.3

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Query Solutions Ltd. · Orbit Foxversion=2.10.3 <2.10.3

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 National Vulnerability DatabaseCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
3.5NIST National Vulnerability DatabaseAV:N/AC:M/Au:S/C:N/I:P/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')
T1565.001Stored Data Manipulation

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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