CVE-2021-24341Public exploitNetwork attack vector

Authenticated SQL injection via delete-date parameters

Published Jun 14, 2021 · Updated Aug 3, 2024

SQL injection in XllenTech's Xllentech English Islamic Calendar before 2.6.8 allows remote authenticated users to alter database queries. The administrative delete-date action inserts the year_number and month_number POST parameters into an SQL statement without sanitization, escaping, or validation. Access to the WordPress administrative settings action and its nonce is required; the published proof of concept demonstrates time-based database query control.

CVSS severity8.8
High
EPSS probability1.59%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

SQL injection in XllenTech's Xllentech English Islamic Calendar before 2.6.8 allows remote authenticated users to alter database queries. The administrative delete-date action inserts the year_number and month_number POST parameters into an SQL statement without sanitization, escaping, or validation. Access to the WordPress administrative settings action and its nonce is required; the published proof of concept demonstrates time-based database query control.

The record

CVE
CVE-2021-24341
Published
Jun 14, 2021
Updated
Aug 3, 2024
Vendor
XllenTech
Product
Xllentech English Islamic Calendar
Classifications
CWE-89, T1190
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Jun 14, 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=2.6.8 <2.6.8

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

XllenTech · Xllentech English Islamic Calendarversion=2.6.8 <2.6.8

Published CVSS scores

8.8NVDCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
6.5NVDAV:N/AC:L/Au:S/C:P/I:P/A:P

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 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-89Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection')
T1190Exploit Public-Facing Application

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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