PT-2026-43321 · Joomla+2 · Joomla! Framework Filter Package+2

Jsst · Published 2026-05-26 · Updated 2026-05-27 · CVE-2026-48903

Positive Technologies (AI Summary)

CVSS v4.0

6.9

Medium

Base vector

AV:N/AC:L/AT:N/PR:H/UI:P/VC:H/VI:L/VA:L/SC:N/SI:N/SA:N

Name of the Vulnerable Software and Affected Versions The product name cannot be determined (affected versions not specified)

Description Inadequate content filtering within the checkAttribute() methods leads to Cross-Site Scripting (XSS), a condition where malicious scripts are injected into otherwise trusted websites, across various components.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

XSS

Weakness Enumeration

CWE-79

Related Identifiers

BIT-JOOMLA-2026-48903

CVE-2026-48903

Affected Products

Joomla! Framework Filter Package

Joomla!

Joomla! Cms

References · 6

• https://osv.dev/vulnerability/BIT-joomla-2026-48903 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2026-48903 · Security Note
• https://developer.joomla.org/security-centre/1051-20260519-framework-inadequate-content-filtering-within-the-checkattribute-filter-code.html · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2026-48903 · Vendor Advisory
• https://t.me/cveNotify/164752 · Telegram Post
• https://twitter.com/CVEnew/status/2059337208687886701 · Twitter Post