CVE-2021-24651Known exploitationNetwork attack vector

Unauthenticated SQL injection via ays_finish_poll

Published Oct 11, 2021 · Updated Aug 3, 2024

SQL injection in Poll Maker before 3.4.2 allows remote attackers to exfiltrate database data via the ays_finish_poll AJAX action. The action incorporates attacker-controlled poll parameters into a database query without adequate SQL neutralization, enabling timing-based inference of values such as password hashes even when query results are not returned. No authentication or user interaction is required, and the demonstrated consequence is confidentiality loss rather than a reported ability to modify data or interrupt service.

CVSS severity7.5
High
EPSS probability1.64%
Next 30 days · Sep 16, 2026
Known exploitationReported
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

SQL injection in Poll Maker before 3.4.2 allows remote attackers to exfiltrate database data via the ays_finish_poll AJAX action. The action incorporates attacker-controlled poll parameters into a database query without adequate SQL neutralization, enabling timing-based inference of values such as password hashes even when query results are not returned. No authentication or user interaction is required, and the demonstrated consequence is confidentiality loss rather than a reported ability to modify data or interrupt service.

The record

CVE
CVE-2021-24651
Published
Oct 11, 2021
Updated
Aug 3, 2024
Vendor
AYS Pro Plugins
Product
Poll Maker
Classifications
CWE-89, CWE-203, T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Oct 11, 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=3.4.2 <3.4.2

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

AYS Pro Plugins · Poll Makerversion=3.4.2 <3.4.2

Published CVSS scores

5.0NVDAV:N/AC:L/Au:N/C:P/I:N/A:N
7.5NVDCVSS:3.1/AV:N/AC:L/PR:N/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.

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 exploitationReported
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-89Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection')
CWE-203Observable Discrepancy
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.

Reported exploitation

Technologies

Your stack

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Your stack

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