Lack of escaping leads to an XSS vulnerability in the generic image output layout.
CVE-2026-48953
Score 6.1 from GitHub Security Advisory published 2026-07-07. NVD baseline CVSS 6.1; sources differ by 0.0.
- Lower severity and no public exploit yet
No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.
- CVSS v3
- 6.1
- EG Score
- 6.1(high)
- EPSS
- 4.4%
- KEV
- Not listed
Published
July 7, 2026
Last Modified
July 9, 2026
Advisory Details (1)
Auto-updated Jul 7, 2026[20260707] - Core - XSS in the generic image output layout
https://developer.joomla.org/security-centre/1061-20260707-core-xss-in-the-generic-image-output-layout.htmlVendor Advisories for CVE-2026-48953(1)
These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.
Weakness Classification(1)
MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.
Data Freshness Timeline
(refreshed 20× in last 7d / 25× in last 30d)
Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.
- 2026-07-15 16:57 UTCEPSS rescore
- 2026-07-15 02:43 UTCEG score recompute
- 2026-07-15 02:42 UTCGHSA enrichment
- 2026-07-15 02:00 UTCEPSS rescore
- 2026-07-14 01:28 UTCEG score recompute
- 2026-07-14 01:28 UTCGHSA enrichment
- 2026-07-13 22:30 UTCEPSS rescore
- 2026-07-13 06:13 UTCEPSS rescore
- 2026-07-13 00:17 UTCEG score recompute
- 2026-07-13 00:17 UTCGHSA enrichment
- 2026-07-12 05:46 UTCEPSS rescore
- 2026-07-11 23:04 UTCEG score recompute
- 2026-07-11 23:04 UTCGHSA enrichment
- 2026-07-11 08:27 UTCEPSS rescore
- 2026-07-10 21:53 UTCEG score recompute
- 2026-07-10 21:53 UTCGHSA enrichment
- 2026-07-09 20:42 UTCEG score recompute▲ 0.20
- 2026-07-09 20:42 UTCGHSA enrichment
- 2026-07-09 19:10 UTCEPSS rescore
- 2026-07-09 13:52 UTCNVD updateCVSS v3 → 6.1
- 2026-07-08 19:31 UTCEG score recompute
- 2026-07-08 19:31 UTCGHSA enrichment
- 2026-07-08 15:16 UTCEPSS rescore
- 2026-07-07 18:19 UTCEG score recompute
- 2026-07-07 18:16 UTCMITRE cvelistV5first tracked
Related CVEs(same CWE)
Frequently asked(5)
What is CVE-2026-48953?
When was CVE-2026-48953 disclosed?
Is CVE-2026-48953 actively exploited?
What is the CVSS score of CVE-2026-48953?
How do I remediate CVE-2026-48953?
Dependency Blast Radius
Explore the affected products and dependency analysis for CVE-2026-48953
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