CVE-2026-35223
CVE-2026-35223 is a critical-severity vulnerability in Joomla Joomla! with a CVSS 3.x base score of 9.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-284.
Key facts
- Severity: Critical (CVSS 3.x base score 9.8)
- CVSS v4: 8.6
- EPSS exploit prediction: 0% (27th percentile)
- Actively exploited: Not listed in CISA KEV
- EU (EUVD) id: EUVD-2026-31877
- Weakness: CWE-284
- Affected product: Joomla Joomla!
- Published:
- Last modified:
Description
An improper access check allows unauthorized access to com_config webservice endpoints.
Frequently asked questions
- What is CVE-2026-35223?
- An improper access check allows unauthorized access to com_config webservice endpoints.
- How severe is CVE-2026-35223?
- CVE-2026-35223 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
- Is CVE-2026-35223 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (27th percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2026-35223?
- CVE-2026-35223 affects Joomla Joomla!. See the affected-products list for the exact vulnerable versions.
- How do I fix CVE-2026-35223?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
- Does CVE-2026-35223 have an EU (EUVD) identifier?
- Yes. CVE-2026-35223 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-31877.
- When was CVE-2026-35223 published?
- CVE-2026-35223 was published on 2026-05-26 and last updated on 2026-06-17.
References
Affected products (1)
- cpe:2.3:a:joomla:joomla\!:*:*:*:*:*:*:*:*
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