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CVE-2025-26557: WordPress ViperBar Plugin <= 2.0 - Reflected Cross Site Scripting (XSS) vulnerability

7.1 CVSS

Description

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in NotFound ViperBar allows Reflected XSS. This issue affects ViperBar: from n/a through 2.0.

Classification

CVE ID: CVE-2025-26557

CVSS Base Severity: HIGH

CVSS Base Score: 7.1

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

Problem Types

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

Affected Products

Vendor: NotFound

Product: ViperBar

Exploit Prediction Scoring System (EPSS)

EPSS Score: 0.04% (probability of being exploited)

EPSS Percentile: 8.17% (scored less or equal to compared to others)

EPSS Date: 2025-04-01 (when was this score calculated)

References

https://nvd.nist.gov/vuln/detail/CVE-2025-26557
https://patchstack.com/database/wordpress/plugin/viperbar/vulnerability/wordpress-viperbar-plugin-2-0-reflected-cross-site-scripting-xss-vulnerability?_s_id=cve

Timeline