CVE-2025-15396VulnerabilityPublished 2 Feb 2026

CVE-2025-15396: Library Viewer (WordPress plugin) · Cross-Site Scripting (XSS)

Affects Library Viewer (WordPress plugin)Source CVE Database V5

Not known to be exploited · CVSS 7.1 High : upgrade to 3.2.0 soon.

Data as of 26 Oct 2026, 06:26 UTC

CVSS 3.1 base score

7.1High

How severe the flaw is on the 0–10 CVSS scale.

EPSS: 0.2% chance of exploitation in 30 days – higher than 17% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
Patch: Available – fixed in 3.2.0

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

Attack Vector: Network
Attack Complexity: Low
Privileges Required: None
User Interaction: Required
Scope: Changed
Confidentiality: Low
Integrity: Low
Availability: Low

Bold values are the worst case: easiest to exploit or largest impact.

Attack Vector: Network: The vulnerable component is bound to the network stack and the set of possible attackers extends beyond the other options listed, up to and including the entire Internet. Such a vulnerability is often termed 'remotely exploitable' and can be thought of as an attack being exploitable at the protocol level one or more network hops away (e.g., across one or more routers).
Attack Complexity: Low: Specialized access conditions or extenuating circumstances do not exist. An attacker can expect repeatable success against the vulnerable component.
Privileges Required: None: The attacker is unauthorized prior to attack, and therefore does not require any access to settings or files to carry out an attack.
User Interaction: Required: Successful exploitation of this vulnerability requires a user to take some action before the vulnerability can be exploited.
Scope: Changed: An exploited vulnerability can affect resources beyond the security scope managed by the security authority of the vulnerable component. In this case, the vulnerable component and the impacted component are different and managed by different security authorities.
Confidentiality: Low: There is some loss of confidentiality. Access to some restricted information is obtained, but the attacker does not have control over what information is obtained, or the amount or kind of loss is limited. The information disclosure does not cause a direct, serious loss to the impacted component.
Integrity: Low: Modification of data is possible, but the attacker does not have control over the consequence of a modification, or the amount of modification is limited. The data modification does not have a direct, serious impact on the impacted component.
Availability: Low: Performance is reduced or there are interruptions in resource availability. Even if repeated exploitation of the vulnerability is possible, the attacker does not have the ability to completely deny service to legitimate users. The resources in the impacted component are either partially available all of the time, or fully available only some of the time, but overall there is no direct, serious consequence to the impacted component.

Definitions: FIRST CVSS v3.1 specification.

Exploitation evidence

Disclosed: evidence found.
CVE published 2 Feb 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponised: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 2026-10-26.

Disclosed: The CVE record is public on cve.org. Its publication is t = 0.
Detectable: A public nuclei template can find exposed instances, for defenders and attackers alike.
Weaponised: Public exploit code exists in Metasploit or Exploit-DB, or CISA SSVC reports a public proof of concept.
Exploited in the wild: CISA KEV lists it, CISA SSVC rates exploitation active, or a source reports attacks.
Observed by OffSeq Mirage: OffSeq Mirage honeypot sensors recorded attack traffic for this CVE, or found exposed hosts without attack traffic.

Moments are spaced evenly, not to scale; a dashed line marks a gap of six months or more. Deltas count from t = 0. Sources that give only a date (CISA KEV, Exploit-DB, or a time of exactly 00:00Z) read “same day” rather than hours. Metasploit modules carry the flaw’s disclosure date, not their release date, and nuclei templates carry no date, so both appear above but not on the timeline.

What to do

Upgrade Library Viewer (WordPress plugin) to 3.2.0.

Affected software

Product	Affected	Fixed in
Library Viewer	Affected <3.2.0	Fixed in 3.2.0

AI-suggested

1. Update the Library Viewer plugin to version 3.2.0 or later as soon as it becomes available, as this will include proper input sanitization and escaping to prevent XSS. 2. If you cannot patch yet, implement a Web Application Firewall (WAF) with rules specifically designed to detect and block reflected XSS payloads targeting the plugin’s parameters. 3. Restrict administrative access to the WordPress backend and the plugin interface by IP whitelisting or VPN access to reduce exposure to malicious links. 4. Educate administrators and high-privilege users about the risks of clicking on unsolicited or suspicious links, particularly those that may contain URL parameters. 5. Employ Content Security Policy (CSP) headers to limit the execution of unauthorized scripts in browsers, mitigating the impact of potential XSS payloads. 6. Regularly audit and monitor web server logs and WordPress activity logs for unusual access patterns or attempts to exploit XSS vectors. 7. Consider disabling or limiting the use of the Library Viewer plugin if it is not essential, reducing the attack surface. 8. Engage in proactive vulnerability scanning and penetration testing focused on web application security to identify similar issues early.

Description

CVE-2025-15396 is a high-severity reflected Cross-Site Scripting (XSS) vulnerability in the Library Viewer WordPress plugin versions before 3.2.0. The vulnerability arises because the plugin fails to properly sanitize and escape certain parameters before reflecting them in the page output. This flaw allows attackers to craft malicious URLs that, when visited by high-privilege users such as administrators, can execute arbitrary scripts in their browsers. Exploitation requires user interaction but no prior authentication, and it can impact confidentiality, integrity, and availability by stealing session tokens, performing actions on behalf of admins, or defacing content. Although no known exploits are currently reported in the wild, the vulnerability’s CVSS score of 7.1 indicates a significant risk. European organizations using the Library Viewer plugin on WordPress sites, especially those with administrative users accessing the plugin, should prioritize patching or mitigating this issue. Countries with high WordPress adoption and significant digital infrastructure, such as Germany, the UK, France, and the Netherlands, are more likely to be affected.

Impact

For European organizations, the impact of CVE-2025-15396 can be significant, especially for those relying on the Library Viewer plugin to present digital content on WordPress platforms. Successful exploitation can compromise administrative accounts, leading to unauthorized access to sensitive data, modification or deletion of content, and potential disruption of services. This can damage organizational reputation, lead to data breaches, and violate data protection regulations such as GDPR. Educational institutions, government agencies, and cultural organizations in Europe that use this plugin are particularly at risk due to the sensitive nature of their data and the high privileges of affected users. The reflected XSS nature means attackers can exploit this vulnerability remotely without authentication but require tricking users into clicking malicious links, which is feasible through phishing campaigns. The scope change in the CVSS vector suggests that the vulnerability can impact components beyond the plugin itself, potentially affecting the entire WordPress site’s integrity and availability. Given the widespread use of WordPress across Europe, the threat surface is broad, and the potential for lateral movement or further compromise exists if attackers leverage this vulnerability as an initial foothold.

CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') (opens in a new tab)
Base weaknessLikelihood of exploit: HighCWE Top 25 (2025): #1OWASP Top 10 A05:2025: Injection (opens in a new tab)
The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users.
Architecture and Design · Libraries or Frameworks
Use a vetted library or framework that does not allow this weakness to occur or provides constructs that make this weakness easier to avoid.
Implementation · Architecture and Design
Understand the context in which your data will be used and the encoding that will be expected. This is especially important when transmitting data between different components, or when generating outputs that can contain multiple encodings at the same time, such as web pages or multi-part mail messages.
Architecture and Design · Implementation · Attack Surface Reduction
Understand all the potential areas where untrusted inputs can enter your software: parameters or arguments, cookies, anything read from the network, environment variables, reverse DNS lookups, query results, request headers, URL components, e-mail, files, filenames, databases, and any external systems that provide…
OWASP Cheat Sheets
Cross Site Scripting Prevention (opens in a new tab)
DOM based XSS Prevention (opens in a new tab)
Injection Prevention (opens in a new tab)
Abuse Case (opens in a new tab)
Deserialization (opens in a new tab)
OWASP ASVS 4.0.3
V5.3.3 (opens in a new tab)
V1.5.1 (opens in a new tab)
Attack patterns
XSS Using MIME Type Mismatch (opens in a new tab)
DOM-Based XSS (opens in a new tab)
Reflected XSS (opens in a new tab)
Stored XSS (opens in a new tab)
Cross-Site Scripting (XSS) (opens in a new tab)
From MITRE CWE, MITRE CAPEC and OWASP (Top 10, OpenCRE).

References

wpscan.com/vulnerability/08790e11-019d-4680-a75f-ee0a937f8cc8/ (opens in a new tab)

Community reviews

Loading reviews…

Exploitation evidence

What to do

Affected software

Description

AI analysisMachine-generated, updated 9 Feb 2026, 11:01 UTC

WeaknessesCWE-79

Technical details

References

Community reviews

Related threats