CVE-2021-31777Public exploitNetwork attack vector

Authenticated database disclosure via unsanitized backend input

Published Apr 28, 2021 · Updated May 30, 2025

SQL injection in TYPO3 Dynamic Content Element 2.2.0 through 2.6.1 and 2.7.0 allows remote authenticated users to read database data. The extension passes backend-supplied input into an SQL query without adequate sanitization; the vendor has not identified the affected function or parameter. A valid TYPO3 backend account is required, and published scoring bounds the demonstrated impact to database confidentiality rather than modification or service interruption.

CVSS severity4.9
Medium
EPSS probability1.41%
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 TYPO3 Dynamic Content Element 2.2.0 through 2.6.1 and 2.7.0 allows remote authenticated users to read database data. The extension passes backend-supplied input into an SQL query without adequate sanitization; the vendor has not identified the affected function or parameter. A valid TYPO3 backend account is required, and published scoring bounds the demonstrated impact to database confidentiality rather than modification or service interruption.

The record

CVE
CVE-2021-31777
Published
Apr 28, 2021
Updated
May 30, 2025
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-89
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Apr 28, 2021CVE publishedPublication date reported by the CVE source.
  2. May 30, 2025Record 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

4.9NIST NVDCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N
4.0NIST NVDAV:N/AC:L/Au:S/C:P/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.

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
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

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

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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