Raw vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:LSummary
CVE-2026-29924 is a high-severity Improper Restriction of XML External Entity Reference (CWE-611) vulnerability in Getgrav Grav. Its CVSS base score is 7.6 (High).
Operationally, exploitation aligns with the MITRE ATT&CK technique Exploit Public-Facing Application (T1190); ranked at the 27th percentile by exploit likelihood (below the median); it is not currently listed in the CISA KEV catalog.
The strongest mitigations our analysis identified map to CM-6 (Configuration Settings) and SA-11 (Developer Testing and Evaluation) — see the control section below for these in your framework.
Deeper analysis AI-assisted summary
Synthesised by an AI model from the NVD description and linked references — a reading aid, not an authoritative source.
CVE-2026-29924 is an XML External Entity (XXE) vulnerability, mapped to CWE-611, affecting Grav CMS versions 1.7.x and earlier. The flaw exists in the SVG file upload functionality within the admin panel and File Manager plugin, as published on 2026-03-30. It carries a CVSS v3.1 base score of 7.6 (AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:L), reflecting high severity due to its potential for significant data exposure.
An authenticated attacker with low privileges, such as access to the admin panel, can exploit this over the network with low complexity and no user interaction required. Successful exploitation enables high confidentiality impact, allowing read access to sensitive files on the server, alongside low-level integrity and availability disruptions, all within the unchanged scope of the application.
Mitigation details and patches are referenced in the Grav GitHub repository at https://github.com/getgrav/grav. Security practitioners should consult this source for updates, workarounds, or version upgrades addressing the SVG upload processing.
OWASP Top 10 for Web (2025)
EU & UK References
- 🇪🇺 ENISA EUVD: EUVD-2026-17148
Vulnerability Data
Grav CMS v1.7.x and before is vulnerable to XML External Entity (XXE) through the SVG file upload functionality in the admin panel and File Manager plugin.
- CWE(s)
Related Threats
MITRE ATT&CK Enterprise Techniques
CVEs Like This One
Affected Assets
Mitigating Controls
Control response
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V1.5.1V15.3.2
Mitigating Controls (NIST 800-53 r5) AI
Secure configuration settings can disable external entity processing in XML parsers.
Developer testing can discover XXE flaws through targeted XML parsing tests.
Input validation can reject or sanitize XML containing external entity references.
Mitigating Controls (NIST CSF 2.0) AI
Derived directly from the weakness types (CWEs) cited in the NVD entry via our AI-authored CWE→CSF cross-walk (authority under review) — links open the control.
Hardened XML parser configurations directly disable external entity resolution.
Secure SDLC practices include input validation and safe XML parser configuration that prevent XXE.
Vulnerability scanning can discover XXE flaws but does not prevent their introduction in code.
Patching eliminates XXE-vulnerable parser versions but is only one aspect of software maintenance.
Mitigating Controls (ISO/IEC 27001:2022 Annex A) AI
Derived directly from the weakness types (CWEs) cited in the NVD entry via our AI-authored CWE→ISO cross-walk (authority under review) — links open the control.
Security testing in development catches XXE via static analysis and dynamic XML fuzzing.
Vulnerability management identifies and patches XML libraries with unsafe default entity settings.
Secure development life cycle mandates input validation and entity handling that directly prevents XXE.
Application security requirements explicitly call for disabling external entity processing in XML parsers.
Secure architecture principles include safe parser configuration that mitigates external entity risks.
Secure coding standards require disabling DTDs and external entities in XML processing.