CVE-2025-62653Public exploitNetwork attack vector

Stored XSS via raw system-message HTML

Published Oct 17, 2025 · Updated Oct 17, 2025

Stored XSS in Wikimedia Foundation PollNY 1.39, 1.43, and 1.44 allows remote authenticated users to run script in visitors' browsers. Poll.js retrieves poll-js-action-complete and related system messages without escaping, then passes them to jQuery .html() or LightBox.setText() as raw HTML. The attacker needs permission to alter a system message or administer a poll, and a visitor must enter a PollNY flow that renders that message.

CVSS severity2.0
Low
EPSS probability0.29%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Stored XSS in Wikimedia Foundation PollNY 1.39, 1.43, and 1.44 allows remote authenticated users to run script in visitors' browsers. Poll.js retrieves poll-js-action-complete and related system messages without escaping, then passes them to jQuery .html() or LightBox.setText() as raw HTML. The attacker needs permission to alter a system message or administer a poll, and a visitor must enter a PollNY flow that renders that message.

The record

CVE
CVE-2025-62653
Published
Oct 17, 2025
Updated
Oct 17, 2025
Vendor
Wikimedia Foundation
Product
PollNY
Classifications
CWE-79, CAPEC-592, T1189
Attack vector
network
Privileges
admin

Timeline

How it unfolded

  1. Oct 17, 2025CVE publishedPublication date reported by the CVE source.
  2. Oct 17, 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
  2. Affected versionversion=1.43
  3. Affected versionversion=1.44

What conditions does exploitation require?

Attack vectornetwork
Required privilegesadmin

What is affected?

Wikimedia Foundation · PollNYversion=1.39; version=1.43; version=1.44

Published CVSS scores

2.0Wikimedia FoundationCVSS:4.0/AV:N/AC:H/AT:P/PR:H/UI:P/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/S:N/AU:N/R:U/V:C/RE:M/U:Amber

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-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
CAPEC-592Stored XSS
T1189Drive-by Compromise

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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