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CVE-2026-90906

high

Joomla!

Vendor / product: Joomla — joomla\!

Joomla! Core - [20260901] - XSS in HTMLHelper::link method in Joomla 1.5.0-5.4.8, 6.0.0-6.1.3 - Lack of escaping leads to XSS vulnerabilities in the link method of the HTML Helper.

CVSS
8.3
8.3 (CVSS v3.1)
CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:H/I:H/A:L
Severity source: NVD CVSS v3.1 (nvd@nist.gov)
Timeline (UTC)
Published: 2026-09-29 17:17
Modified: 2026-10-06 16:48
NVD status: Analyzed
Last synced 2 days ago
Verified against the source API 2026-10-27 06:56 UTC
Exploitation
Not listed in CISA KEV (as of last catalog sync)
Absence from KEV does not mean a CVE is not exploited. Exploitation status: unknown (no authoritative evidence in our sources).

Affected products

joomla / joomla\! ≥1.5.0 <5.4.8, ≥6.0.0 <6.1.3

Weakness classification (CWE)

Source: NVD / CISA. “NVD-CWE-Other” and “NVD-CWE-noinfo” mean NVD could not assign a specific weakness.

Mitigation & advisories

Vendor advisory: https://developer.joomla.org/security-centre/1081-20260901-core-xss-in-htmlhelper-link-method.html
Patch / mitigation: https://developer.joomla.org/security-centre/1081-20260901-core-xss-in-htmlhelper-link-method.html

References

Data sources

NVD CVE API 2.0 — fetched 2026-10-27 06:56 UTC · record ↗

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