CVE-2025-53484Network attack vector

Session compromise via unescaped poll and page names

Published Jul 4, 2025 · Updated Jul 8, 2025

Cross-site scripting in SecurePoll before 1.39.13, 1.42.7, or 1.43.2 allows attackers to compromise MediaWiki user sessions. VotePage.php outputs poll-option input, while ResultPage::getPagesTab() and getErrorsTab() build links from user-controlled page names without proper escaping. The public record does not specify the precise request sequence or privileges required; execution is confined to the browser context that renders the affected output.

CVSS severity9.8
Critical
EPSS probability0.47%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Cross-site scripting in SecurePoll before 1.39.13, 1.42.7, or 1.43.2 allows attackers to compromise MediaWiki user sessions. VotePage.php outputs poll-option input, while ResultPage::getPagesTab() and getErrorsTab() build links from user-controlled page names without proper escaping. The public record does not specify the precise request sequence or privileges required; execution is confined to the browser context that renders the affected output.

The record

CVE
CVE-2025-53484
Published
Jul 4, 2025
Updated
Jul 8, 2025
Vendor
Wikimedia Foundation
Product
MediaWiki SecurePoll
Classifications
CWE-79
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jul 4, 2025CVE publishedPublication date reported by the CVE source.
  2. Jul 8, 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?

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

  1. Affected versionversion=1.39.x <1.39.13
  2. Affected versionversion=1.42.x <1.42.7
  3. Affected versionversion=1.43.x <1.43.2

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Wikimedia Foundation · MediaWiki SecurePollversion=1.39.x <1.39.13; version=1.42.x <1.42.7; version=1.43.x <1.43.2

Published CVSS scores

9.8CISA-ADPCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

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 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 exploitUnconfirmed

Weakness, pattern, technique

CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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