CVE-2021-22848Network attack vector

Unauthenticated SQL command execution via URL parameter

Published Mar 18, 2021 · Updated Sep 16, 2024

SQL injection in HGiga MailSherlock iSherlock-user before 4.5-120 and iSherlock-antispam before 4.5-133 allows remote attackers to run SQL commands. An email-page URL parameter is incorporated into an SQL statement without neutralizing SQL syntax, causing supplied data to be interpreted as database commands. No authentication or user interaction is required, and executed SQL commands can access the email archive and alter or disrupt stored data.

CVSS severity7.0
High
EPSS probability0.98%
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 HGiga MailSherlock iSherlock-user before 4.5-120 and iSherlock-antispam before 4.5-133 allows remote attackers to run SQL commands. An email-page URL parameter is incorporated into an SQL statement without neutralizing SQL syntax, causing supplied data to be interpreted as database commands. No authentication or user interaction is required, and executed SQL commands can access the email archive and alter or disrupt stored data.

The record

CVE
CVE-2021-22848
Published
Mar 18, 2021
Updated
Sep 16, 2024
Vendor
HGiga
Product
MailSherlock MSR45/SSR45
Classifications
CWE-89, T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Mar 18, 2021CVE publishedPublication date reported by the CVE source.
  2. Sep 16, 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=iSherlock-antispam-4.5 <133
  2. Affected versionversion=iSherlock-user-4.5 <120

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

HGiga · MailSherlock MSR45/SSR45version=iSherlock-antispam-4.5 <133; version=iSherlock-user-4.5 <120

Published CVSS scores

9.8NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
7.0TWCERT/CCCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:L/A:L
7.5NIST NVDAV:N/AC:L/Au:N/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 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 exploitUnconfirmed

Weakness, pattern, technique

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

Public exploit references

No public exploit references are available in this record.

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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