CVE-2021-24933Public exploitNetwork attack vector

Authenticated script execution via unescaped AJAX prefix

Published Feb 28, 2022 · Updated Aug 3, 2024

Reflected XSS in Kalmang Dynamic Widgets 1.5.16 and earlier allows remote authenticated users to execute script via a crafted AJAX request. The term_tree action inserts the prefix parameter into an HTML attribute without escaping, so event-handler markup becomes executable output. Exploitation requires an authenticated WordPress session and user interaction; injected script runs with that browser session's site privileges.

CVSS severity5.4
Medium
EPSS probability0.60%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Reflected XSS in Kalmang Dynamic Widgets 1.5.16 and earlier allows remote authenticated users to execute script via a crafted AJAX request. The term_tree action inserts the prefix parameter into an HTML attribute without escaping, so event-handler markup becomes executable output. Exploitation requires an authenticated WordPress session and user interaction; injected script runs with that browser session's site privileges.

The record

CVE
CVE-2021-24933
Published
Feb 28, 2022
Updated
Aug 3, 2024
Vendor
Kalmang
Product
Dynamic Widgets
Classifications
CWE-79, T1203
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Feb 28, 2022CVE 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=1.5.16 <=1.5.16

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Kalmang · Dynamic Widgetsversion=1.5.16 <=1.5.16

Published CVSS scores

5.4WordfenceCVSS: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.

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No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 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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