CVE-2026-48952: Lack of escaping leads to an XSS vulnerability in the update list view of com_installer.

mediumCVSS 6.1CVE-2026-48952

Lack of escaping leads to an XSS vulnerability in the update list view of com_installer.

Details

Source: NVD Recent CVEs (US · database · site)
Severity: medium — CVSS 6.1
Published: 2026-07-07
Last updated: 2026-07-09
Exploitation: Not in CISA KEV at last sync

Original advisory: https://nvd.nist.gov/vuln/detail/CVE-2026-48952

Exploitation outlook

EPSS (FIRST.org) estimates each CVE’s probability of exploitation in the next 30 days — here is the CSIRTS.com read on those numbers.

Low exploitation riskCVE-2026-489520.15% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 4% of all scored CVEs.

Referenced CVEs

CVE	CSIRTS overview	External
CVE-2026-48952	coverage & exploitation status	NVD · CVE.org

Same CVEs, other sources

How other CERTs, PSIRTs and databases cover the vulnerabilities in this advisory.

high[NEW] [high] Joomla: Multiple vulnerabilitiescert-bund
unknownMultiple vulnerabilities in Joomla! (July 08, 2026)cert-fr-avis

Recent advisories for Lack of escaping

A cluster of recent advisories against the same product widens the attack surface — attackers routinely chain freshly published CVEs on one product, so review these together.

mediumCVE-2026-48953: Lack of escaping leads to an XSS vulnerability in the generic image output layout.nvd · 2026-07-07
mediumCVE-2026-48951: Lack of escaping leads to XSS vulnerabilities in modalreturn layouts of various components.nvd · 2026-07-07
mediumCVE-2026-48950: Lack of escaping leads to an XSS vulnerability in the file management view of com_templates.nvd · 2026-07-07