CVE-2021-24622Public exploitNetwork attack vector

Stored XSS via unescaped form-field labels

Published Oct 18, 2021 · Updated Aug 3, 2024

Stored XSS in WP Ticket before 5.10.4 allows remote authenticated users with high privileges to run scripts through form labels. The Editing Form accepts script-bearing Label values and returns them to the form-list interface without contextual output escaping. Administrator-level access is required to store the payload, and execution requires a user to reload the affected editing page, exposing that user's browser session to script actions.

CVSS severity4.8
Medium
EPSS probability0.64%
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 WP Ticket before 5.10.4 allows remote authenticated users with high privileges to run scripts through form labels. The Editing Form accepts script-bearing Label values and returns them to the form-list interface without contextual output escaping. Administrator-level access is required to store the payload, and execution requires a user to reload the affected editing page, exposing that user's browser session to script actions.

The record

CVE
CVE-2021-24622
Published
Oct 18, 2021
Updated
Aug 3, 2024
Vendor
eMarket Design LLC
Product
WP Ticket
Classifications
CWE-79, T1059.007
Attack vector
network
Privileges
admin

Timeline

How it unfolded

  1. Oct 18, 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

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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=5.10.4 <5.10.4

What conditions does exploitation require?

Attack vectornetwork
Required privilegesadmin

What is affected?

eMarket Design LLC · WP Ticketversion=5.10.4 <5.10.4

Published CVSS scores

4.8NIST NVDCVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N
3.5NIST NVDAV: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
Privilegesadmin
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

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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