CVE-2025-15396Public exploitNetwork attack vector

Victim-browser script execution via reflected message parameters

Published Feb 2, 2026 · Updated Feb 2, 2026

Reflected XSS in Library Viewer before 3.2.0 allows remote attackers to execute scripts in a high-privilege user's browser. The shortcode page writes the library-viewer-error-message and library-viewer-success-message query parameters into HTML without sanitizing or escaping them. A site must expose a page containing the [library-viewer] shortcode, and the targeted user must open a crafted URL; the script then runs within that user's site origin.

CVSS severity7.1
High
EPSS probability0.23%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Reflected XSS in Library Viewer before 3.2.0 allows remote attackers to execute scripts in a high-privilege user's browser. The shortcode page writes the library-viewer-error-message and library-viewer-success-message query parameters into HTML without sanitizing or escaping them. A site must expose a page containing the [library-viewer] shortcode, and the targeted user must open a crafted URL; the script then runs within that user's site origin.

The record

CVE
CVE-2025-15396
Published
Feb 2, 2026
Updated
Feb 2, 2026
Vendor
Christos Pechlevanoudis
Product
Library Viewer
Classifications
CWE-79, T1059.007
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Feb 2, 2026CVE publishedPublication date reported by the CVE source.
  2. Feb 2, 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 <3.2.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Christos Pechlevanoudis · Library Viewerversion=0 <3.2.0

Published CVSS scores

7.1CISA-ADPCVSS:3.1/AV:N/AC:L/PR:N/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 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
T1059.007Command and Scripting Interpreter: JavaScript/JScript

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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