[NEW] [high] Joomla: Multiple vulnerabilities
An attacker can exploit multiple vulnerabilities in Joomla to execute arbitrary code, disclose information, manipulate files, conduct a cross-site scripting attack, and bypass security measures.
CSIRTS triage
- What
- Multiple vulnerabilities in Joomla enable remote code execution, information disclosure, cross-site scripting, file manipulation, and security bypass.
- Who is affected
- Joomla deployments running affected versions.
- Urgency
- High priority; multiple attack vectors for code execution and data compromise.
- Action
- Apply Joomla security patches addressing the listed CVEs immediately.
AI-assisted analysis generated from the source advisory — verify against the original.
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Details
Original advisory: https://wid.cert-bund.de/portal/wid/securityadvisory?name=WID-SEC-2026-2926
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-2026-715720.32% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 25% of all EPSS-scored CVEs.
- Low exploitation riskCVE-2026-715730.34% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 27% of all EPSS-scored CVEs.
- Low exploitation riskCVE-2026-715740.26% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 18% of all EPSS-scored CVEs.
- Low exploitation riskCVE-2026-725310.32% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 25% of all EPSS-scored CVEs.
- Low exploitation riskCVE-2026-725320.32% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 25% of all EPSS-scored CVEs.
- Low exploitation riskCVE-2026-733360.32% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 24% of all EPSS-scored CVEs.
- Low exploitation riskCVE-2026-733370.34% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 27% of all EPSS-scored CVEs.
- Low exploitation riskCVE-2026-733710.29% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 22% of all EPSS-scored CVEs.
- Low exploitation riskCVE-2026-733720.29% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 22% of all EPSS-scored CVEs.
- Low exploitation riskCVE-2026-733730.31% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 23% of all EPSS-scored CVEs.
Referenced CVEs
| CVE | CSIRTS overview | External |
|---|---|---|
| CVE-2026-71572 | coverage & exploitation status | NVD · CVE.org |
| CVE-2026-71573 | coverage & exploitation status | NVD · CVE.org |
| CVE-2026-71574 | coverage & exploitation status | NVD · CVE.org |
| CVE-2026-72531 | coverage & exploitation status | NVD · CVE.org |
| CVE-2026-72532 | coverage & exploitation status | NVD · CVE.org |
| CVE-2026-73336 | coverage & exploitation status | NVD · CVE.org |
| CVE-2026-73337 | coverage & exploitation status | NVD · CVE.org |
| CVE-2026-73371 | coverage & exploitation status | NVD · CVE.org |
| CVE-2026-73372 | coverage & exploitation status | NVD · CVE.org |
| CVE-2026-73373 | coverage & exploitation status | NVD · CVE.org |
Same CVEs, other sources
How other CERTs, PSIRTs and databases cover the vulnerabilities in this advisory.
- unknownMultiple vulnerabilities in Joomla! (August 19, 2026)cert-fr-avis
- unknownCVE-2026-73372: Joomla! Core - [20260809] - Improper ACL checks when injection schema.org contact data in Joom…nvd
- unknownCVE-2026-73336: Joomla! Core - [20260806] - XSS through schema.org outputs in Joomla 5.1.0-5.4.7, 6.0.0-6.1.2 …nvd
- unknownCVE-2026-72531: Joomla! Core - [20260804] - Improper ACL checks for custom fields webservice endpoints in Joom…nvd
- unknownCVE-2026-71573: Joomla! Core - [20260802] - Improper CORS origin validation in Joomla 4.0.0-5.4.7, 6.0.0-6.1.2…nvd
- unknownCVE-2026-71572: Joomla! Core - [20260801] - Response header injection in download views in Joomla 3.0.0-5.4.7,…nvd
- unknownCVE-2026-73373: Joomla! Core - [20260810] - Unrestricted uploads of SHTML files in Joomla 1.0.0-5.4.7, 6.0.0-6…nvd
- unknownCVE-2026-73371: Joomla! Core - [20260808] - Improper ACL checks for batch copy actions in Joomla 4.0.0-5.4.7, …nvd
- unknownCVE-2026-73337: Joomla! Core - [20260807] - MFA Authentication Bypass in Joomla 4.0.0-5.4.7 and 6.0.0-6.1.2 - …nvd
- unknownCVE-2026-72532: Joomla! Core - [20260806] - Improper ACL checks for category webservice endpoints in Joomla 4.…nvd
- unknownCVE-2026-71574: Joomla! Core - [20260803] - Inconsistent ACL checks for mutating webservice endpoints in Jooml…nvd
Recent advisories for Joomla
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.
- unknownCVE-2026-75956: Joomla Extension - cmsjunkie.com - DOS vector in pagination parameter handling in J-BusinessDi…nvd · 2026-08-19
- unknownCVE-2026-75955: Joomla Extension - cmsjunkie.com - Reflected XSS / XML injection in J-BusinessDirectory < 6.2.…nvd · 2026-08-19
- unknownCVE-2026-75954: Joomla Extension - cmsjunkie.com - SQL injection in trips search in J-BusinessDirectory < 6.2.…nvd · 2026-08-19
- unknownCVE-2026-75953: Joomla Extension - cmsjunkie.com - Open mail relay in J-BusinessDirectory < 6.2.3 - Recipient …nvd · 2026-08-19
- unknownCVE-2026-75952: Joomla Extension - cmsjunkie.com - Cross-site request forgery in J-BusinessDirectory < 6.2.3 -…nvd · 2026-08-19
- unknownCVE-2026-75951: Joomla Extension - cmsjunkie.com - Insecure Direct Object Reference (multiple frontend/API act…nvd · 2026-08-19
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