CVE-2021-24578Public exploitNetwork attack vector

Script execution via unescaped match_day output

Published Dec 21, 2021 · Updated Aug 3, 2024

Reflected XSS in ThemeBoy SportsPress before 2.7.9 allows remote attackers to execute script via a crafted match_day parameter. The Events backend page returns match_day without sanitization or output escaping, causing browser-interpreted markup to enter its response. Exploitation requires a site user authorized to view the Events backend to open the crafted URL; injected script runs under the site's origin.

CVSS severity6.1
Medium
EPSS probability0.80%
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 ThemeBoy SportsPress before 2.7.9 allows remote attackers to execute script via a crafted match_day parameter. The Events backend page returns match_day without sanitization or output escaping, causing browser-interpreted markup to enter its response. Exploitation requires a site user authorized to view the Events backend to open the crafted URL; injected script runs under the site's origin.

The record

CVE
CVE-2021-24578
Published
Dec 21, 2021
Updated
Aug 3, 2024
Vendor
ThemeBoy
Product
SportsPress
Classifications
CWE-79, T1203
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Dec 21, 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=2.7.9 <2.7.9

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

ThemeBoy · SportsPressversion=2.7.9 <2.7.9

Published CVSS scores

6.1NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
4.3NIST NVDAV:N/AC:M/Au:N/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
Privilegesunauthenticated
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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