CVE-2021-26830Public exploitNetwork attack vector

Database access and modification via unvalidated deletion ID

Published Apr 16, 2021 · Updated Aug 3, 2024

SQL injection in TribalSystems Zenario CMS before 8.8.53370 allows remote authenticated users to read or alter database data. The Plugin library delete handler in ajax.php places the attacker-controlled ID value into an SQL statement without enforcing an integer list, allowing injected SQL to run. Administrator access to the plugin-library deletion workflow is required; exploitation can expose or modify database data and delete a plugin.

CVSS severity9.1
Critical
EPSS probability4.57%
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 TribalSystems Zenario CMS before 8.8.53370 allows remote authenticated users to read or alter database data. The Plugin library delete handler in ajax.php places the attacker-controlled ID value into an SQL statement without enforcing an integer list, allowing injected SQL to run. Administrator access to the plugin-library deletion workflow is required; exploitation can expose or modify database data and delete a plugin.

The record

CVE
CVE-2021-26830
Published
Apr 16, 2021
Updated
Aug 3, 2024
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-89, T1190
Attack vector
network
Privileges
admin

Timeline

How it unfolded

  1. Apr 16, 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?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectornetwork
Required privilegesadmin

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

9.1NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
6.4NIST NVDAV:N/AC:L/Au:N/C:P/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-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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