CVE-2026-42611: CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') in getgrav grav
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.
AI Analysis
Technical Summary
Grav versions before 2.0.0-beta.2 contain a CWE-79 improper input neutralization vulnerability that allows a low-privileged user to inject SVG elements leading to cross-site scripting. This XSS can be escalated to disclose system configuration details accessible under /admin/config/info when accessed by a Super Admin user. The disclosed information combined with an admin nonce can be chained to perform remote code execution on the server. The vulnerability has a CVSS 3.1 score of 8.9, indicating high severity. No official remediation level or patch link is provided in the data, but the issue is fixed starting from version 2.0.0-beta.2.
Potential Impact
Exploitation allows a low-privileged user to perform XSS attacks that escalate to disclosure of sensitive system information and potentially full server compromise via remote code execution. This impacts confidentiality, integrity, and availability of the affected system. The vulnerability affects all Grav installations running versions prior to 2.0.0-beta.2.
Mitigation Recommendations
Upgrade Grav to version 2.0.0-beta.2 or later to remediate this vulnerability. Since the vendor advisory confirms the fix is included starting from 2.0.0-beta.2, applying this update is the recommended and effective mitigation. Patch status is not explicitly stated beyond this version fix, so verify with the vendor for any additional guidance.
CVE-2026-42611: CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') in getgrav grav
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.
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
Grav versions before 2.0.0-beta.2 contain a CWE-79 improper input neutralization vulnerability that allows a low-privileged user to inject SVG elements leading to cross-site scripting. This XSS can be escalated to disclose system configuration details accessible under /admin/config/info when accessed by a Super Admin user. The disclosed information combined with an admin nonce can be chained to perform remote code execution on the server. The vulnerability has a CVSS 3.1 score of 8.9, indicating high severity. No official remediation level or patch link is provided in the data, but the issue is fixed starting from version 2.0.0-beta.2.
Potential Impact
Exploitation allows a low-privileged user to perform XSS attacks that escalate to disclosure of sensitive system information and potentially full server compromise via remote code execution. This impacts confidentiality, integrity, and availability of the affected system. The vulnerability affects all Grav installations running versions prior to 2.0.0-beta.2.
Mitigation Recommendations
Upgrade Grav to version 2.0.0-beta.2 or later to remediate this vulnerability. Since the vendor advisory confirms the fix is included starting from 2.0.0-beta.2, applying this update is the recommended and effective mitigation. Patch status is not explicitly stated beyond this version fix, so verify with the vendor for any additional guidance.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- GitHub_M
- Date Reserved
- 2026-04-29T00:31:15.726Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6a01f792cbff5d86102f20dc
Added to database: 5/11/2026, 3:36:50 PM
Last enriched: 5/11/2026, 3:53:51 PM
Last updated: 5/12/2026, 3:49:33 AM
Views: 9
Community Reviews
0 reviewsCrowdsource mitigation strategies, share intel context, and vote on the most helpful responses. Sign in to add your voice and help keep defenders ahead.
Want to contribute mitigation steps or threat intel context? Sign in or create an account to join the community discussion.
Actions
Updates to AI analysis require Pro Console access. Upgrade inside Console → Billing.
Need more coverage?
Upgrade to Pro Console for AI refresh and higher limits.
For incident response and remediation, OffSeq services can help resolve threats faster.
Latest Threats
Check if your credentials are on the dark web
Instant breach scanning across billions of leaked records. Free tier available.