CVE-2025-31090Network attack vector

Stored script execution via unescaped contributor content

Published Mar 28, 2025 · Updated Apr 28, 2026

Stored XSS in alordiel Dropdown Multisite selector before 0.9.4 allows remote authenticated users to execute scripts in visitors' browsers. Public advisories identify insufficient input sanitization and output escaping when contributor-controlled content is rendered, but they do not disclose the affected parameter or function. Contributor-level access is required to store the payload, and execution occurs when another user opens the injected page, exposing that browser session to script-driven actions.

CVSS severity6.5
Medium
EPSS probability0.21%
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 alordiel Dropdown Multisite selector before 0.9.4 allows remote authenticated users to execute scripts in visitors' browsers. Public advisories identify insufficient input sanitization and output escaping when contributor-controlled content is rendered, but they do not disclose the affected parameter or function. Contributor-level access is required to store the payload, and execution occurs when another user opens the injected page, exposing that browser session to script-driven actions.

The record

CVE
CVE-2025-31090
Published
Mar 28, 2025
Updated
Apr 28, 2026
Vendor
alordiel
Product
Dropdown multisite selector
Classifications
CWE-79, CAPEC-592, T1059.007
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Mar 28, 2025CVE publishedPublication date reported by the CVE source.
  2. Apr 28, 2026Record 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=0 <=0.9.4 changes=[{"at":"0.9.4","status":"unaffected"}]

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

alordiel · Dropdown multisite selectorversion=0 <=0.9.4 changes=[{"at":"0.9.4","status":"unaffected"}]

Published CVSS scores

6.5PatchstackCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:L

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 exploitUnconfirmed

Weakness, pattern, technique

CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
CAPEC-592Stored XSS
T1059.007JavaScript/JScript

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.

Technologies

Your stack

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Your stack

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