CVE-2026-42611
CVE-2026-42611 is a high-severity vulnerability in Getgrav Grav with a CVSS 3.x base score of 8.9. 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-79.
Key facts
- Severity: High (CVSS 3.x base score 8.9)
- EPSS exploit prediction: 0% (22nd percentile)
- Actively exploited: Not listed in CISA KEV
- EU (EUVD) id: EUVD-2026-29069
- Weakness: CWE-79
- Affected product: Getgrav Grav
- Published:
- Last modified:
Description
Grav is a file-based Web platform. Prior to 2.0.0-beta.2, a low-privileged (with the ability to create a page) user can cause XSS with the injection of svg element. The XSS can further be escalated to dump the entire system information available under /admin/config/info whenever a Super Admin visits the page; which can further be chained with the use of admin-nonce to do a complete server compromise (RCE). This vulnerability is fixed in 2.0.0-beta.2.
Frequently asked questions
- What is CVE-2026-42611?
- Grav is a file-based Web platform. Prior to 2.0.0-beta.2, a low-privileged (with the ability to create a page) user can cause XSS with the injection of svg element. The XSS can further be escalated to dump the entire system information available under /admin/config/info whenever a Super Admin visits the page; which can further be chained with the use of admin-nonce to do a complete server compromise (RCE). This vulnerability is fixed in 2.0.0-beta.2.
- How severe is CVE-2026-42611?
- CVE-2026-42611 has a CVSS 3.x base score of 8.9, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and user interaction. Impact on confidentiality is high, integrity low, and availability high.
- Is CVE-2026-42611 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (22nd percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2026-42611?
- CVE-2026-42611 primarily affects Getgrav Grav. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
- How do I fix CVE-2026-42611?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
- Does CVE-2026-42611 have an EU (EUVD) identifier?
- Yes. CVE-2026-42611 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-29069.
- When was CVE-2026-42611 published?
- CVE-2026-42611 was published on 2026-05-11 and last updated on 2026-06-17.
References
- https://github.com/getgrav/grav/commit/5a12f9be8314682c8713e569e330f11805d0a663
- https://github.com/getgrav/grav/security/advisories/GHSA-w8cg-7jcj-4vv2
Affected products (2)
- cpe:2.3:a:getgrav:grav:*:*:*:*:*:*:*:*
- cpe:2.3:a:getgrav:grav:2.0.0:beta1:*:*:*:*:*:*
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