CVE-2022-1581Public exploitNetwork attack vector

Repeat voting via spoofed client IP headers

Published Nov 21, 2022 · Updated Apr 30, 2025

Authorization bypass in WP-Polls before 2.76.0 allows remote attackers to cast repeated poll votes by changing a supplied client IP header. The voter-identification path treats client-supplied forwarding headers as the visitor identity ahead of the web server's REMOTE_ADDR value. No account is required; changing the trusted header presents a new identity and defeats per-IP repeat-vote controls, altering poll totals.

CVSS severity5.3
Medium
EPSS probability0.65%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Authorization bypass in WP-Polls before 2.76.0 allows remote attackers to cast repeated poll votes by changing a supplied client IP header. The voter-identification path treats client-supplied forwarding headers as the visitor identity ahead of the web server's REMOTE_ADDR value. No account is required; changing the trusted header presents a new identity and defeats per-IP repeat-vote controls, altering poll totals.

The record

CVE
CVE-2022-1581
Published
Nov 21, 2022
Updated
Apr 30, 2025
Vendor
Lester Chan
Product
WP-Polls
Classifications
CWE-639, T1565.001
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Nov 21, 2022CVE publishedPublication date reported by the CVE source.
  2. Apr 30, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=0 <2.76.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Lester Chan · WP-Pollsversion=0 <2.76.0

Published CVSS scores

5.3CISA-ADPCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
5.3NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/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 exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-639Authorization Bypass Through User-Controlled Key
T1565.001Stored Data Manipulation

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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