CVE-2021-45811Public exploitNetwork attack vector

Database disclosure via ticket search SQL injection

Published Sep 8, 2023 · Updated Jul 9, 2026

SQL injection in osTicket 1.15.x allows remote authenticated users to execute arbitrary SQL commands through ticket search parameters. The Search functionality in tickets.php fails to neutralize SQL syntax in combined keywords and topic_id URL parameters before constructing a database query. Access to the authenticated ticket interface is required, and successful exploitation permits unauthorized reading of database data.

CVSS severity6.5
Medium
EPSS probability2.50%
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 osTicket 1.15.x allows remote authenticated users to execute arbitrary SQL commands through ticket search parameters. The Search functionality in tickets.php fails to neutralize SQL syntax in combined keywords and topic_id URL parameters before constructing a database query. Access to the authenticated ticket interface is required, and successful exploitation permits unauthorized reading of database data.

The record

CVE
CVE-2021-45811
Published
Sep 8, 2023
Updated
Jul 9, 2026
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-89, T1190
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Sep 8, 2023CVE publishedPublication date reported by the CVE source.
  2. Jul 9, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

6.5National Vulnerability DatabaseCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/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-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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